POUCH UNDERWEAR BUILT FOR THE WAY MEN ACTUALLY MOVE

7 Best Underwear for Working Out in Australia (2025 Guide)

Choosing the right gear for a workout often focuses on shoes and apparel, but the foundation of true comfort and performance lies in what you wear underneath. The wrong pair can lead to chafing, discomfort, and a build-up of moisture, derailing even the most focused training session. The best underwear for working out, however, does the opposite: it supports, breathes, and moves with you, becoming an invisible asset to your physical activity. This is especially true when preparing for extended periods of exertion, such as epic multi-day hikes, where the right base layer is paramount for sustained comfort and preventing irritation.

This guide delves into the crucial features to look for, from advanced moisture-wicking fabrics and anti-chafe construction to specialised support systems designed for the active Australian man. We will explore why materials like bamboo and technical synthetics are game-changers and how innovative pouch designs can revolutionise your comfort and health. This isn't just about covering up; it's about gearing up for peak performance from the inside out. Let's explore the top contenders available in Australia that promise to keep you comfortable, supported, and chafe-free through every squat, run, and lift.

1. SLY Collective Underwear

SLY Collective Underwear solidifies its position as a standout choice for workout enthusiasts by masterfully blending high-performance technology with sustainable, Aussie-made quality. Established in 2005, this iconic Australian brand addresses the most common complaints men have with athletic underwear, delivering a solution that excels in support, comfort, and durability. Its thoughtful design makes it some of the best underwear for working out, particularly for high-intensity training, endurance sports, and everyday active use.

The brand’s core innovation lies in its unique construction. Each pair is engineered to provide superior function during physical activity, ensuring you remain focused on your performance, not your apparel.

Key Features Analysis

What truly sets SLY Collective apart is its meticulous attention to detail, designed specifically for active men. The boxer briefs are crafted from a premium blend of pesticide-free bamboo and cotton, a fabric choice that offers significant performance advantages. This material is naturally antibacterial and moisture-wicking, pulling sweat away from the skin to keep you dry and comfortable during even the most gruelling workouts.

The design incorporates two game-changing elements:

  • Inner Hammock Pouch: This specialised pouch provides exceptional support for the scrotum, separating it from the thighs to eliminate skin-on-skin friction. This is crucial for preventing the painful chafing that can derail a workout. For a deeper dive into how this technology works, you can explore their detailed guide on underwear to prevent chafing.
  • Longer Leg Design: SLY Collective has perfected a longer leg cut that stays firmly in place without riding up or bunching, a common annoyance with standard boxer briefs during squats, runs, or cycling.

A surprising yet practical feature is the built-in stash pocket, a secure spot for a key, card, or cash when you’re at the gym or on a run.

Why It Excels for Workouts

SLY Collective is purpose-built for movement. The combination of the supportive pouch and no-ride-up legs provides a secure, distraction-free fit that moves with your body. The bamboo fabric’s breathability and quick-dry properties help regulate temperature, preventing overheating and promoting better testicular health. This focus on functional design ensures you can transition seamlessly from a heavy lifting session to a long run without needing to adjust or worry about discomfort.

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Beyond performance, the brand’s commitment to Australian manufacturing and sustainable, biodegradable materials appeals to the eco-conscious athlete. While the price point reflects its premium quality and local production, the investment is justified by its durability and long-lasting comfort. The brand also stands behind its product with a first-pair comfort guarantee, offering free size exchanges or a full refund, making it a risk-free choice.

Website: https://slycollective.com

2. VANTA Australia

VANTA Australia carves out a specific niche in the performance apparel market, focusing on men's underwear engineered to combat the unique challenges of the Australian climate. This brand is the ideal destination for runners, gym-goers, and athletes who have struggled with chafing and discomfort during intense physical activity. Their core offering, the Sweat Series, is built from the ground up to provide the best underwear for working out by prioritising breathability, support, and a chafe-free experience.

What truly sets VANTA apart is its hyper-focus on preventing the dreaded "chafe." The design incorporates flatlock seams and a specialised performance fabric that works to minimise friction, a common pain point for anyone engaged in repetitive motion sports like running or cycling. This dedication to local conditions and athlete-specific problems makes it a standout choice for those seeking high-performance, Australian-designed gear. For more insights into locally sourced options, you can explore this overview of Australian-made underwear.

Performance and Design

VANTA's product design revolves around practical, athlete-centric features that directly enhance a workout. The fabric is not only lightweight and fast-drying but also structured to provide support without being restrictive or overly compressive.

  • Anti-Chafe Construction: Flat seams and smooth fabric are strategically used to eliminate irritation in high-friction zones.
  • No Ride-Up Fit: The boxer briefs are tailored to stay securely in place, preventing annoying bunching or readjustments mid-workout.
  • Climate-Specific Fabric: The material is exceptionally breathable, designed to wick sweat away and keep you cool and dry, even during hot and humid sessions.

Navigating the VANTA Website

The VANTA Australia website (vanta.store) offers a streamlined user experience. Products are easy to find, with detailed descriptions and clear imagery showcasing the key features.

Feature Comparison VANTA Australia's Approach
Primary Focus Anti-chafe, breathable performance for athletes
Target Climate Optimised for Australian heat and humidity
Product Range Specialised, primarily men's performance underwear
Price Point Premium, reflecting the specialised design and materials

While the product selection is more focused compared to larger brands, this specialisation is its greatest strength. Pricing is in the premium range, but the investment reflects the quality and thoughtful engineering aimed at solving a specific problem for active men. This makes VANTA a top contender for anyone serious about their workout comfort.

3. Runderwear Australia

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Runderwear Australia has established itself as a leading authority for athletes, particularly runners, seeking performance underwear that guarantees a chafe-free experience. The brand caters to both men and women, offering meticulously engineered garments designed to eliminate discomfort during high-impact activities. Their core principle is simple: create the best underwear for working out by focusing on seamless construction and advanced fabric technology, ensuring every run is free from irritation.

What makes Runderwear a go-to platform is its unwavering dedication to solving the specific problem of friction-induced chafing. By using 360-degree seamless technology, they remove the seams and tags that commonly cause irritation over long distances. This specialised approach, combined with moisture-wicking materials, keeps athletes dry and comfortable, solidifying their reputation among the running community. For those wanting a deeper dive into anti-chafe solutions, you can find a comprehensive guide to the best anti-chafing boxer briefs.

Performance and Design

Runderwear’s design philosophy centres on runner-specific needs, delivering functionality that directly enhances performance. The fabrics are lightweight, breathable, and designed to move with the body, providing support without restriction.

  • Seamless Technology: The 360-degree seamless construction eradicates potential friction points, offering a smooth, chafe-free fit.
  • Moisture-Wicking Fabric: High-performance material draws sweat away from the skin, preventing moisture build-up and keeping you dry.
  • Breathable Micro-Perforations: Panels with micro-perforations are strategically placed to maximise airflow and regulate temperature during intense exercise.

Navigating the Runderwear Website

The Runderwear Australia website (runderwear.com.au) provides a user-friendly shopping experience, with clear categories for men and women. Products are well-detailed, with sizing guides and customer reviews readily available to help inform purchasing decisions.

Feature Comparison Runderwear Australia's Approach
Primary Focus Chafe-free, seamless performance underwear for runners
Target Audience Men and women engaged in running and other physical activities
Product Range Specialised underwear, base layers, and sports bras
Price Point Premium, justified by specialised seamless technology and fabrics

While the brand has a niche focus on underwear and base layers, this specialisation is what makes it a market leader. The premium pricing reflects the investment in research and development to create a genuinely high-performance product. This makes Runderwear a top-tier choice for any athlete who refuses to let discomfort compromise their performance.

4. Under Armour Australia

Under Armour Australia is a global titan in performance apparel, and their men's training underwear is a testament to their technology-driven approach. This brand is the go-to for athletes and fitness enthusiasts who demand reliability, advanced fabric technology, and a fit engineered for dynamic movement. Their extensive range, featuring innovations like HeatGear®, makes them a powerful contender for the best underwear for working out, especially for those who prioritise moisture management and unrestricted mobility.

What distinguishes Under Armour is its deep-rooted history in creating gear that solves athletic problems. Their underwear isn't just an afterthought; it’s a core performance product. The brand offers a wide variety of inseam lengths and fits, allowing athletes to fine-tune their gear for specific activities, from heavy lifting to long-distance running. This commitment to variety and proven technology ensures a dependable, high-performance experience. For a deeper dive into fabric performance, this guide on moisture-wicking underwear offers valuable insights.

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Performance and Design

Under Armour’s design philosophy centres on creating a "second skin" feel that enhances athletic output. The use of proprietary fabrics and ergonomic construction provides support and comfort without getting in the way of your performance.

  • HeatGear® Fabric: This signature material is ultra-light, smooth, and wicks sweat fast to keep you cool and dry.
  • Four-Way Stretch: The construction allows for superior mobility and flexibility in every direction, crucial for complex movements.
  • Anti-Odor Technology: Integrated technology prevents the growth of odour-causing microbes, keeping your gear fresher for longer.
  • Performance Waistband: The elastic waistband is designed to stay put without digging in or rolling over during intense workouts.

Navigating the Under Armour Australia Website

The Under Armour Australia website (underarmour.com.au) is well-organised and user-friendly, with filters for size, colour, and technology. Detailed product pages, customer reviews, and clear size guides help shoppers make informed decisions.

Feature Comparison Under Armour Australia's Approach
Primary Focus Technology-driven performance, moisture-wicking, and mobility
Product Range Extensive, with various fits, lengths (3", 6", 9"), and technologies
Key Technology HeatGear® fabric, anti-odour treatment, four-way stretch
Price Point Mid to premium, with frequent sales and multi-pack deals

While some items are priced at a premium, the brand’s frequent promotions and bundle offers provide excellent value. For athletes seeking gear backed by a global reputation for innovation and quality, Under Armour remains a top-tier choice.

5. Gymshark Australia

Gymshark has cemented its reputation as a global fitness apparel giant, and its Australian platform brings this modern, style-conscious approach to workout essentials. The brand is a go-to for younger, trend-aware athletes who want their gear to perform well and look good. Gymshark's underwear collection is specifically designed to complement an active lifestyle, offering the best underwear for working out by blending soft, breathable fabrics with a secure, movement-friendly fit.

What makes Gymshark a strong contender is its ability to merge contemporary aesthetics with functional performance. The designs are sleek and minimalist, often featuring the iconic logo on a comfortable, elasticated waistband. This focus on style, combined with reliable workout functionality, has built a loyal following. The availability of multipack options also provides excellent value for those looking to stock up on quality athletic basics. For those prioritising a snug fit, you can find more information on the benefits of supportive underwear for men.

Performance and Design

Gymshark focuses on creating underwear that feels as good as it looks, ensuring you can move without restriction during any exercise, from weightlifting to HIIT. The fabric choice and construction are central to this philosophy, prioritising all-day comfort and performance.

  • Unrestricted Movement: Made with stretchy materials that move with your body, preventing any feeling of being held back during squats, lunges, or stretches.
  • Secure Fit: A branded, elasticated waistband ensures the underwear stays put without digging in, eliminating distractions.
  • Breathable Comfort: The soft, breathable fabric helps manage moisture and maintain comfort, even during intense sessions.

Navigating the Gymshark Website

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The Gymshark Australia website (au.gymshark.com) is user-friendly and visually driven, reflecting its modern brand identity. It's easy to browse collections, with clear product images and customer reviews helping to guide purchasing decisions.

Feature Comparison Gymshark Australia's Approach
Primary Focus Stylish, comfortable underwear for a modern fitness audience
Target Demographic Younger consumers who value brand aesthetic and performance
Product Range Men's boxer briefs, often available in multipacks
Price Point Mid-range, with value-oriented multipack deals

While physical store access in Australia is limited, the online experience is seamless. High demand can sometimes lead to popular sizes and styles selling out quickly, so it's wise to act fast when new collections drop. For style-conscious individuals seeking reliable, comfortable, and affordable workout underwear, Gymshark is an unbeatable choice.

6. Myprotein Australia

Myprotein Australia is a well-known name in the sports nutrition and apparel world, and their underwear and socks range provides a budget-friendly, functional option for everyday athletes. While not a specialised underwear brand, it serves as a convenient one-stop shop for those already purchasing supplements or workout gear. Their approach is focused on simplicity and affordability, making them a great choice for stocking up on basics without breaking the bank.

What makes Myprotein a worthy inclusion is its accessibility and value. For gym-goers who need reliable, no-fuss underwear for general training, the cotton boxers offer comfort and breathability at a price point that is hard to beat, especially when purchased in multipacks. This focus on core essentials rather than high-tech features positions Myprotein as the go-to for building a foundational workout wardrobe on a budget, offering some of the best underwear for working out when cost-effectiveness is a primary concern.

Performance and Design

Myprotein’s underwear design prioritises function and everyday comfort over advanced technical specifications. The items are built for general-purpose activity rather than elite-level performance, focusing on reliable materials and a comfortable fit.

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  • Cotton Comfort: The primary use of cotton in their boxers ensures softness and breathability suitable for light to moderate workouts.
  • Functional Basics: Designs are simple and effective, focusing on a secure fit for daily wear and general exercise sessions.
  • Value Multipacks: The ability to buy underwear and socks in bundles offers significant savings, perfect for those needing to refresh their workout drawer.

Navigating the Myprotein Website

The Myprotein Australia website (au.myprotein.com) is part of a larger e-commerce platform, but the underwear and socks section is easy to locate under the men's clothing category. The site is known for its frequent sales and promotional codes, so it pays to look out for deals.

Feature Comparison Myprotein Australia's Approach
Primary Focus Affordable, functional basics for everyday workouts
Key Material Primarily cotton for breathability and comfort
Product Range Limited selection of men's boxers and athletic socks
Price Point Budget-friendly, with excellent value through multipacks and sales

While the range is more limited than specialised brands and lacks advanced moisture-wicking or anti-chafe technologies, its strength lies in its incredible value. For those seeking dependable, comfortable basics for the gym without a premium price tag, Myprotein is an excellent and practical choice.

7. Step One

Step One has rapidly become a major player in the comfort and performance underwear market, building a loyal following in Australia and beyond. The brand’s core mission is to solve the universal problem of chafing, making their products a compelling choice for anyone leading an active lifestyle. Their boxer briefs are specifically engineered with unique anti-chafe panels, offering some of the best underwear for working out if your primary goal is to eliminate inner-thigh friction and discomfort during exercise.

What distinguishes Step One is its innovative use of a Lycra gusset or panel that runs along the inner thighs. This smooth, flexible panel prevents the skin-on-skin friction that causes chafing, a common issue during runs, squats, or long walks. Combined with a body made from soft, breathable bamboo fabric, Step One offers a unique blend of targeted performance technology and all-day comfort, appealing to both serious athletes and those simply seeking a more comfortable daily experience.

Performance and Design

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Step One’s design philosophy centres on creating an irritation-free fit that supports natural movement. The combination of sustainable bamboo viscose and specialised Lycra panels delivers a product that performs well under pressure without sacrificing softness.

  • Anti-Chafe Lycra Panels: The brand's signature feature, these ultra-flexible panels are strategically placed on the inner thighs to completely prevent chafing.
  • Breathable Bamboo Fabric: The main body of the underwear is crafted from bamboo viscose, known for its moisture-wicking properties, softness, and sustainability.
  • Inclusive Sizing: Step One is committed to inclusivity, offering an extensive size range from XS up to 6XL to ensure a perfect fit for every body type.

Navigating the Step One Website

The Step One website (stepone.life) is bright, user-friendly, and heavily focused on customer education. It clearly explains the technology behind its anti-chafe design with diagrams and video testimonials. The purchasing process is streamlined, often encouraging bundle buys for better value.

Feature Comparison Step One's Approach
Primary Focus Chafe prevention through specialised Lycra panels
Key Material Soft, sustainable bamboo viscose
Product Range Focused on boxer briefs with a wide variety of colours and prints
Price Point Mid-to-premium, with value-driven bundle offers

While some user feedback mentions durability concerns after extensive washing, the overwhelming consensus points to exceptional comfort and effective chafe prevention. The slightly higher price point is justified by its specialised design and sustainable materials, making Step One a go-to for anyone who has been let down by conventional workout underwear.

Top 7 Workout Underwear Comparison

Brand 🔄 Implementation Complexity ⚡ Resource Requirements 📊 Expected Outcomes 💡 Ideal Use Cases ⭐ Key Advantages
SLY Collective Underwear Medium – innovative pouch and pocket design High – sustainable bamboo, local manufacturing High comfort, anti-chafing, durable, eco-friendly Active men, athletes, travelers Superior scrotum support, stash pocket, eco-friendly fabrics
VANTA Australia Medium – performance fit and fabrics Medium – performance textiles tailored to climate Effective anti-chafe, breathable, quick-dry Runners, athletes in hot climates Anti-chafe flat seams, breathability, fit stability
Runderwear Australia Low-Medium – seamless design Medium – moisture-wicking, breathable materials Reduced chafing, dryness, comfort for workouts Runners, active men and women Seamless, gender-inclusive, variety of styles
Under Armour Australia High – advanced technical fabrics High – proprietary HeatGear® and anti-odor treatments Enhanced mobility, moisture control, odor protection Athletes needing performance tech Trusted global brand, wide range, advanced fabric tech
Gymshark Australia Low-Medium – focus on stretch and comfort Medium – soft breathable fabrics, elastic bands Comfortable fit, unrestricted movement, stylish look Young fitness enthusiasts Stylish, comfortable, multi-pack value packs
Myprotein Australia Low – basic cotton design Low – cotton fabric, multipack production Basic comfort, breathability, affordable Budget-conscious users, everyday wear Affordable, functional, widely available
Step One Medium – bamboo with lycra gusset Medium – sustainable bamboo, inclusive sizing Chafe prevention, comfort, eco-conscious Active users wanting sustainable options Anti-chafe lycra gusset, wide sizing, sustainability

Elevate Your Performance with the Right Foundation

Choosing the right workout gear often centres on shoes, shorts, and shirts, but the foundation of your comfort and performance starts with your underwear. As we've explored, moving beyond standard cotton briefs to technically advanced fabrics is a non-negotiable step for any serious athlete or active individual. The best underwear for working out isn't a luxury; it's a crucial piece of equipment that directly impacts your ability to train without distraction.

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By investing in performance-oriented underwear, you eliminate common frustrations that can derail your focus. Say goodbye to uncomfortable chafing during a long run, the distracting need to adjust bunching fabric mid-squat, and the clammy feeling of sweat-soaked cotton. The right pair works with your body, managing moisture, providing targeted support, and allowing you to concentrate fully on achieving your personal best. Each brand we've detailed offers a unique solution tailored to specific needs, proving there's a perfect match for every type of activity and personal preference.

Your Personalised Underwear Checklist

Selecting the ideal pair from our curated list depends entirely on your unique priorities. To make the best choice, consider what matters most to you and your training regimen. Use this checklist as a final guide to pinpoint the perfect option:

  • For the Eco-Conscious Athlete: If sustainability is a key driver, look towards SLY Collective Underwear with its TENCEL™ Modal fabric and commitment to ethical production. Step One, with its certified organic bamboo, is another excellent choice for those prioritising environmentally friendly materials.
  • For the High-Intensity Specialist: If your workouts involve high-impact movements, sprints, and heavy lifting, you need maximum support and moisture control. Under Armour’s technical fabrics and Gymshark’s seamless designs are engineered for this intensity. VANTA Australia also excels here, offering robust support for dynamic activities.
  • For the Endurance Runner: Long-distance runners should prioritise anti-chafe technology above all else. Runderwear Australia is purpose-built by runners, for runners, with features specifically designed to prevent irritation over many kilometres.
  • For the Budget-Conscious Buyer: If you're looking for quality without a premium price tag, Myprotein and Step One offer multi-pack deals that provide excellent value, allowing you to stock your drawer with reliable performance basics.
  • For All-Day Comfort and Support: If your goal is versatile underwear that transitions from the gym to daily life, the innovative pouch design from SLY Collective offers unparalleled separation and support, eliminating adjustments and discomfort throughout the day.

Remember, the right underwear is just one part of a holistic approach to athletic readiness. To truly optimise your body for peak performance and prevent injury, consider integrating mobility work into your routine. Incorporating specialist chiropractor stretches that improve workout performance can enhance your flexibility, improve your range of motion, and complement the support your new gear provides.

Ultimately, upgrading your underwear is an investment in yourself. It's a simple change that delivers a significant return in comfort, confidence, and focus. Don't let subpar gear be the weak link in your fitness journey. Analyse your needs, make an informed choice, and feel the transformative difference a high-performance foundation can make.


Ready to experience the ultimate fusion of sustainable comfort and innovative support? Explore the full range at SLY Collective Underwear. Their groundbreaking designs are engineered to eliminate chafing and keep you comfortable, making them a top contender for the best underwear for working out. Check out SLY Collective Underwear today and upgrade your foundational layer.