Finding the best underwear for the gym can be the difference between a powerful workout and a session ruined by chafing, bunching, and discomfort. The right pair provides crucial support, wicks away sweat, and moves with your body, letting you focus entirely on your performance. An uncomfortable pair, however, becomes an unwelcome distraction, leading to constant adjustments and irritation. This guide cuts through the noise to help you find the ideal performance underwear for your specific needs, whether you're lifting weights, running, or hitting a high-intensity class.
We have compiled a comprehensive resource detailing the top options available, with a special focus on Australian brands and retailers. From innovative designs like those from SLY Collective that prioritise support and style, to technical fabrics from global sportswear giants, we've covered the lot. This article provides a detailed analysis of the best websites and platforms to purchase your next pair. We’ll explore the key features, materials, and real-world performance of each option, helping active men, eco-conscious consumers, and even frequent travellers make an informed choice. Each listing includes practical insights and direct links to simplify your search for the ultimate gym underwear. Let's dive in.
Top Men's Gym Underwear Fabrics Compared
Choosing the right material is the first step toward workout comfort. Different fabrics offer distinct advantages for moisture management, breathability, and durability.
graph TD
A[Gym Underwear Fabrics] --> B{Bamboo Viscose};
A --> C{Synthetic Blends (Polyester/Nylon)};
A --> D{Modal};
A --> E{Cotton};
subgraph "Best for Gym"
B;
C;
D;
end
subgraph "Avoid for Gym"
E;
end
B --> B1["✓ Excellent Moisture-Wicking"];
B --> B2["✓ Highly Breathable & Soft"];
B --> B3["✓ Antibacterial Properties"];
C --> C1["✓ Superior Moisture-Wicking"];
C --> C2["✓ Very Durable & Quick-Drying"];
C --> C3["✓ Holds Shape Well"];
D --> D1["✓ Very Soft & Smooth"];
D --> D2["✓ Good Moisture-Wicking"];
D --> D3["✓ Resists Shrinking"];
E --> E1["✗ Absorbs & Holds Sweat"];
E --> E2["✗ Slow to Dry"];
E --> E3["✗ Can Cause Chafing When Wet"];
1. SLY Collective Underwear
SLY Collective earns its top spot as a premier choice for gym underwear by masterfully combining innovative performance technology with a strong commitment to sustainability. This Australian-owned brand has engineered a solution specifically for active men, focusing on eliminating common workout discomforts like chafing, overheating, and constant readjustment. Its standout feature is a sophisticated inner hammock pouch that cradles and separates, providing unparalleled support and ventilation during high-intensity activities. This makes SLY Collective’s offerings some of the best underwear for gym-goers who prioritise function and comfort.
The design philosophy extends beyond the pouch. The longer leg construction is crucial for preventing the fabric from riding up during squats, runs, or deadlifts, ensuring you stay focused on your form, not your fit. Additionally, the integration of a discreet stash pocket adds a layer of practical utility, perfect for securing a locker key or card, freeing you from carrying a bulky wallet on the gym floor.
Core Features for Peak Performance
- Inner Hammock Pouch: This signature design is the core of its functionality, effectively preventing skin-on-skin friction and heat build-up. It offers exceptional support that minimises bounce during dynamic movements.
- Sustainable Bamboo Fabric: The material is a key differentiator. Crafted from pesticide-free bamboo, the fabric is naturally moisture-wicking, antibacterial, and quick-drying, keeping you cool and hygienic through the toughest sessions.
- No Ride-Up Design: The extended leg length and tailored fit ensure the boxer briefs stay firmly in place, eliminating bunching and the need for awkward adjustments mid-workout.
- Built-in Stash Pocket: A secure, discreet pocket offers a practical solution for storing small essentials, enhancing convenience for athletes and travellers alike.
Practical Considerations
The brand’s confidence is backed by customer-centric policies, including a 100% comfort guarantee on your first pair and free size exchanges, making it a risk-free investment. While detailed pricing requires visiting the website to explore various packs, SLY Collective offers significant savings on multi-buy options. The distinct street-style graphics may not align with every taste, but for those seeking performance-driven underwear that stands out, it’s an unbeatable choice.
2. Under Armour Australia (official)
When performance is non-negotiable, going directly to the source is often the best strategy. Under Armour Australia’s official site is the definitive destination for their iconic athletic underwear, specifically engineered for high-intensity training. Here, you can explore the full range of their renowned Boxerjock lines, ensuring you get authentic, purpose-built gear designed to handle sweat, movement, and friction without compromise.
The primary advantage of shopping direct is guaranteed access to the latest fabric technologies and the widest selection of sizes and inseam lengths. Unlike multi-brand retailers, the official site provides detailed technical specifications for each product, helping you choose the best underwear for gym activities ranging from weightlifting to long-distance running. Understanding the benefits of these fabrics is crucial; you can learn more about the science behind moisture-wicking underwear here.
Key Platform Attributes
- Performance-Focused Design: Products feature 4-way stretch fabric and specialised mesh ventilation zones, all built around a core philosophy of moisture management and chafe-free comfort.
- Full Size & Style Range: The site offers the most comprehensive selection of inseam lengths, from 3-inch to 9-inch, ensuring you can find a pair that won’t ride up during deep squats or dynamic movements.
- Direct-from-Brand Perks: Benefit from free standard delivery on orders over A$129, a straightforward 30-day return policy, and the peace of mind that comes with authentic products.
While the free shipping threshold might encourage you to bundle items, and undergarments are typically non-returnable once opened for hygiene reasons, the investment in durable, high-performance designs from the brand itself is a reliable choice for serious athletes.
Website: https://www.underarmour.com.au
3. lululemon Australia
For those prioritising premium comfort and a streamlined fit, lululemon Australia is a top destination. While known for its yoga and activewear, its men's underwear line, particularly the 'Always In Motion' (AIM) boxer, has gained a loyal following as some of the best underwear for gym use. The platform is dedicated to showcasing its own meticulously designed products, offering a focused shopping experience centred on high-performance materials and ergonomic construction.
The website provides a clean, user-friendly interface that makes it simple to browse different lengths and multipack options. A key advantage is the free express shipping offered across Australia, ensuring you receive your premium gear quickly and without extra cost, which is a significant value-add considering the premium price point of the products themselves.
Key Platform Attributes
- Ergonomic Design: The AIM line features an ergonomic pouch and four-way stretch fabric, providing exceptional support and freedom of movement during dynamic exercises like squats and box jumps.
- Performance Fabrics: Built with sweat-wicking and quick-dry modal blends, the underwear excels at managing moisture and preventing the post-workout chill, keeping you comfortable for longer.
- Sizing Options: Shoppers can choose between 5" and 7" inseam lengths to suit their personal preference for coverage and chafe prevention, with multipacks available for better value.
While the cost is higher than many competitors, the investment often translates to superior handfeel, build quality, and long-term comfort. However, due to its popularity, specific sizes and popular colourways can sell out quickly.
Website: https://www.lululemon.com.au/en-au/c/men-underwear
4. Step One
For those whose primary enemy during a workout is friction and chafing, Step One offers a purpose-built solution. As one of the prominent Australian men's underwear brands, they specialise in creating underwear designed to combat thigh rub. Their key innovation is the use of silky ‘Ultraglyde’ panels on the inner thighs, which dramatically reduce friction during repetitive movements like running or cycling, making them an excellent choice for the best underwear for gym activities where chafing is a concern.
The brand's use of moisture-wicking bamboo fabric also helps manage sweat, while the 3D comfort pouch provides support without compression. Step One is particularly noteworthy for its commitment to inclusivity, offering a wide size range that extends up to 6XL, ensuring a comfortable fit for larger athletes. Their First Pair Guarantee also removes the risk of buying online, allowing you to get a refund if the first pair isn't right for you.
Key Platform Attributes
- Anti-Chafe Technology: ‘Ultraglyde’ panels are specifically engineered to prevent the painful skin irritation that can derail a workout.
- Inclusive Sizing: With sizes from XS to 6XL and a helpful online fit-finder, it’s easier to find a non-restrictive and supportive fit.
- Bundle and Save: The platform encourages buying in multi-packs, offering significant discounts that make it affordable to stock up.
While the brand is purpose-built for comfort, some recent user feedback has noted variability in long-term durability. It's wise to purchase a single pair initially to test the fit and performance for your specific workout routine before investing in a larger bundle.
Website: https://stepone.life
5. Bonds (AU)
Bonds is an Australian institution, and its dedicated Sport range makes it a strong contender for sourcing the best underwear for gym wear locally. The brand is known for its accessible pricing and frequent promotions, making it a budget-friendly option for those who need reliable, everyday athletic underwear without the premium price tag of international specialty brands. Their designs often focus on familiar fits tailored to the Australian market.
The key appeal of Bonds is its widespread availability and reputation. You can find their products in major department stores and online, making them easy to purchase. The Sport range specifically incorporates features like moisture-wicking fabrics, breathable mesh panels, and supportive pouches designed to handle moderate-intensity workouts and keep you comfortable. These features are essential for staying dry and can be a great first step in your journey to prevent chafing during exercise.
Key Platform Attributes
- Dedicated Sport Range: The collection is engineered with athletic needs in mind, featuring airflow panels and technical fabrics.
- Value-Focused Bundles: Bonds frequently offers multi-buy discounts and bundle deals, allowing you to stock up on gym essentials for less.
- Wide Availability: Easily accessible online and in physical retail stores across Australia, offering convenience and the chance to see the product before buying.
While Bonds offers great value, community feedback on long-term durability, particularly the elasticity, can be mixed. For the best experience, it's wise to focus on their most recent product runs and check customer reviews before purchasing. However, for a dependable and affordable option from a trusted Australian name, Bonds is an excellent choice.
Website: https://www.bonds.com.au/mens/underwear/sport.html
6. UNIQLO Australia
For those prioritising affordability without sacrificing technical performance, UNIQLO Australia is a standout destination. The brand has earned a loyal following for its AIRism innerwear, a fabric engineered to be lightweight, breathable, and exceptionally quick-drying. This makes it a fantastic and accessible choice for finding some of the best underwear for gym workouts, daily commutes, and even travel.
The primary appeal of UNIQLO is its combination of proven technology and value. The AIRism line provides features often found in premium athletic brands, such as anti-odour and smooth-feel properties, but at a much more approachable price point. Their consistent sizing and widespread availability in physical stores across Australia also make it easy to try before you buy.
Key Platform Attributes
- AIRism Technology: The cornerstone of their performance wear, AIRism fabric is designed to release heat and moisture, keeping you cool and comfortable during intense exercise.
- Affordable Performance: Get access to high-performance features like quick-dry and anti-odour capabilities at a fraction of the cost of specialised athletic brands.
- Seamless Options: Offers seamless boxer brief designs that minimise chafing and irritation, ideal for repetitive movements like running or cycling.
While the AIRism range is widely praised, some users note that the fit can be on the smaller side, and the inseams may feel short for those who prefer more thigh coverage. It’s often recommended to size up for a less restrictive fit. However, for dependable, budget-friendly performance, UNIQLO is an excellent choice.
Website: https://www.uniqlo.com/au/en/special-feature/airism/men
7. Decathlon Australia
For those seeking functional performance without the premium price tag, Decathlon Australia offers some of the best underwear for gym use, particularly through its in-house Kalenji brand. It's a fantastic destination for budget-conscious athletes who prioritise practicality and want to stock up on reliable essentials. Their running-focused designs translate perfectly to the gym, offering features aimed at preventing discomfort during high-movement activities.
The platform is known for its no-frills, value-driven approach. While the Australian site has undergone changes, it remains a go-to for performance gear that punches well above its weight in terms of price. The designs often incorporate insights from a large community of runners and active users, ensuring the features are genuinely useful.
Key Platform Attributes
- Affordable Performance: Access technical features like moisture-wicking microfiber and seamless inner-leg construction at a fraction of the cost of major brands.
- Chafing Prevention: Kalenji briefs are specifically designed with no inner-leg seam, a crucial feature for reducing friction during squats, lunges, and cardio sessions.
- Sustainable Options: Select models are made with recycled materials, offering an eco-conscious choice for those looking to minimise their environmental impact.
While the low price is a major drawcard, be aware that quality control and sizing can sometimes vary between batches. Some users have also reported durability issues after prolonged, heavy use. However, for building out an affordable rotation of gym-ready underwear, Decathlon is an excellent starting point.
Website: https://www.decathlon.com.au
Where to Buy: Best Retailers for Gym Underwear
Beyond the brands themselves, knowing where to shop can save you time and money. Here are the top online retailers and marketplaces for finding men's athletic underwear in Australia.
8. Amazon Australia
For sheer variety and competitive pricing, Amazon Australia is an undeniable powerhouse for sourcing the best underwear for gym sessions. It’s the go-to marketplace when you need a specific model from a global brand like Under Armour or Nike Dri-FIT, especially if it’s sold out on the brand’s direct website. The platform excels in offering multi-packs, providing significant value for those looking to overhaul their entire athletic underwear drawer.
The primary advantage is leveraging its massive user base. The user reviews and Q&A sections are invaluable resources for gauging real-world performance, fit, and long-term durability before you commit to a purchase.
Key Platform Attributes
- Vast Selection: Find everything from basic cotton trunks to high-performance synthetic boxer briefs, including long-leg styles designed to prevent ride-up during squats and lunges.
- User-Generated Insights: Filter reviews to find feedback from users with similar body types or workout routines to make a more informed choice.
- Prime Benefits: Many options are eligible for Amazon Prime, offering fast and free delivery, which is ideal when you need a replacement pair quickly.
Website: https://www.amazon.com.au
9. THE ICONIC (AU)
For a curated, fashion-forward approach to athletic apparel, THE ICONIC stands out as a premier destination for finding the best underwear for gym use in Australia. It masterfully blends top-tier global brands like Nike, adidas, and Under Armour with local favourites, offering a polished shopping experience. The platform is particularly useful for those who want to bundle their underwear purchase with other gym gear from different brands in one seamless checkout.
Its biggest strength is the user-friendly interface combined with rapid delivery promises. The dedicated ‘Men’s Sports Underwear’ section allows for precise filtering by activity, brand, and size, simplifying the search for performance-specific pairs. Additionally, the platform’s focus on genuine Australian stock means you get what you ordered, quickly.
Key Platform Attributes
- Curated Brand Selection: Access a focused range of trusted sports brands, ensuring a baseline of quality and performance without overwhelming choice.
- Fast Delivery Options: THE ICONIC is renowned for its express and same-day delivery options in metro areas, perfect for last-minute gear replacements.
- Frequent Promotions: Regular sales events and multi-pack discounts are clearly displayed, providing excellent opportunities to stock up on premium pairs at a reduced cost.
Website: https://www.theiconic.com.au/mens-sports-clothing-underwear/
10. Rebel Sport (AU)
As one of Australia's largest sports retailers, Rebel Sport is a highly reliable destination for finding the best underwear for gym use from globally recognised performance brands. It's the ideal place to shop when you want to physically see the product or need to coordinate your underwear with other training apparel, like shorts or tights from the same Nike Dri-FIT or Under Armour HeatGear line. Their focus is specifically on athletic apparel, ensuring the curated selection is built for performance.
The primary advantage of shopping with Rebel is the trust and convenience associated with a major national chain. You benefit from straightforward returns policies and the ability to use their Click & Collect service, which is perfect for grabbing a new pair on your way to a workout. Their rebel active loyalty program also provides access to member-only pricing and promotions.
Key Platform Attributes
- Performance-Focused Curation: The range is specifically tailored for sports, featuring gym-oriented fabrics designed for moisture-wicking and breathability.
- Click & Collect: Order online and pick up in-store, often on the same day, which is a significant advantage over online-only marketplaces.
- Trustworthy Returns: Shopping with an established retailer provides peace of mind with a clear warranty and easy returns or exchanges if the fit isn't right.
Website: https://www.rebelsport.com.au
11. Myer (AU department store)
For those who prefer a traditional and reliable retail experience, Myer stands out as a trusted destination for sourcing the best underwear for gym workouts. The major Australian department store is an excellent option for finding mainstream performance brands like Nike and Bonds, often available in convenient multi-packs. It’s the perfect place to shop when you want to bundle your athletic underwear purchase with other gym essentials in a single, streamlined transaction.
Myer’s strength lies in its blend of online convenience and physical store presence. You can easily browse collections like the Nike Dri-FIT series online, take advantage of regular sales events, and then opt for the highly convenient Click & Collect service to pick up your order locally, often on the same day.
Key Platform Attributes
- Trusted Brands: Access core performance lines from major athletic brands known for their moisture-wicking and durable fabrics, ideal for intense training.
- Accessible Shopping Options: Choose between home delivery or free Click & Collect from their extensive network of stores across Australia.
- Reliable Promotions: Myer frequently holds sales events, making it a cost-effective choice for stocking up on high-quality multi-packs.
Website: https://www.myer.com.au
12. eBay Australia
For the savvy shopper hunting for a bargain or a rare find, eBay Australia presents a unique opportunity to source some of the best underwear for gym use. It's an essential marketplace for discovering discontinued styles, specific colours, or older models from top-tier brands like Nike Dri-FIT that you can no longer find at retail. The platform is particularly useful for buying multi-packs at competitive prices, making it a cost-effective way to stock up.
The key to success on eBay is diligent research. By carefully checking seller ratings and reading item descriptions, you can often find brand-new, authentic performance underwear for a fraction of the original price. It's the ideal platform for those who know exactly what model and size they're after and are willing to do a bit of digging to secure a great deal.
Key Platform Attributes
- Access to Rare Stock: Find discontinued product lines, specific inseam lengths, or limited-edition colours that are sold out everywhere else.
- Competitive Bidding and Pricing: The "Buy It Now" and auction-style listings can lead to significant savings, especially on last season's stock.
- Seller Feedback System: Use the seller rating system to gauge reliability and product authenticity before committing to a purchase.
Website: https://www.ebay.com.au
Final Thoughts
Navigating the crowded market for men's athletic underwear can feel like a workout in itself. From high-performance technical fabrics to everyday cotton blends, the sheer number of options is vast. However, our comprehensive review of the top retailers and brands in Australia, from specialist labels like SLY Collective to major players like Rebel Sport and lululemon, reveals a clear path forward. The key isn't finding a single "perfect" pair, but rather understanding your unique needs and matching them with the right features.
The central theme we’ve uncovered is the critical importance of material and design. For high-intensity training, moisture-wicking synthetic blends like polyester, nylon, and elastane are non-negotiable. They actively pull sweat away from your skin, preventing the dreaded damp, clammy feeling and minimising the risk of chafing and irritation. In contrast, for lower-impact activities or daily wear, the breathability and softness of materials like bamboo viscose or premium cotton blends, as seen with brands like Step One and Bonds, offer superior comfort.
Your Action Plan for Selecting the Best Gym Underwear
Finding the best underwear for the gym requires a personalised approach. Don't just grab the first multi-pack you see. Instead, use this checklist to guide your decision-making process:
- Define Your Primary Activity: Are you a marathon runner, a powerlifter, or a yoga enthusiast? Your activity dictates your needs. Runners need maximum moisture control and anti-chafe technology, while lifters may prioritise support and flexibility for deep squats.
- Assess Your Material Needs: If you sweat heavily, prioritise quick-dry synthetics. For sensitive skin or all-day comfort, explore bamboo or modal options. Remember, the fabric is your first line of defence against discomfort.
- Consider the Fit and Features: Do you need a supportive pouch for stability? Are you tired of boxer briefs that ride up and require constant adjustment? Look for features like silicone leg grips, ergonomic pouch designs, and flatlock seams to address your specific pain points.
- Align with Your Values: For many, purchasing decisions go beyond the product itself. If supporting Australian-made, eco-conscious brands is important to you, prioritise companies like SLY Collective that champion local manufacturing and sustainable practices.
Ultimately, the right underwear is a foundational piece of your athletic gear. It’s an investment in your comfort, focus, and performance. Choosing wisely eliminates distractions like chafing, bunching, and overheating, allowing you to concentrate fully on your workout. As you continue your fitness journey, you might also be interested in how certain supplements can help you further optimize your athletic performance, complementing the gains you make in the gym. Treat your underwear selection with the same seriousness as your choice of running shoes or protein powder; it’s a small detail that makes a significant difference.
Ready to upgrade your foundation layer with underwear that’s purpose-built for performance and style? Explore the innovative designs from SLY Collective Underwear. Their Australian-made boxer briefs offer the perfect blend of moisture-wicking technology, anti-chafe construction, and unique style, making them the ultimate choice for your next gym session. Discover the SLY Collective Underwear difference today and feel the support in every move you make.