Short on time? Here are the 15 Aussie underwear names to know for 2025: SLY Collective, Step One, aussieBum, Bonds, 2EROS, TEAMM8, Boody, Knobby, Cocksox, Bushy, Debriefs, Tradie, Bamboo Body, Underworks and Mitch Dowd.
Bamboo has replaced basic cotton, pouches have replaced sweaty seams, and punchy prints now arrive at your letterbox within days. Powered by direct-to-consumer shops and an Aussie appetite for technical fabrics, 2025 sees home-grown underwear labels punching well above their weight. Many are B-Corps, most cut waste with recycled yarns, and almost all celebrate body diversity through broad size runs and unfiltered marketing. The result is underwear that can survive a Gold Coast summer run, a red-eye to Singapore and a twelve-hour warehouse shift without a hitch.
To help you pick the pair that suits your thighs, wallet and values, we’ve compared each brand on five points: comfort tech (think anti-chafe pouches and stay-put legs), fabric choice, size range, manufacturing ethics and bang-for-buck. Scroll on for the full breakdown, fit advice and our honest take on where every label shines – starting with the chafe-free bamboo boxer briefs from SLY Collective, our in-house favourite this season.
1. SLY Collective
Born on the Sunshine Coast and backed by thousands of five-star reviews, SLY Collective has gone from niche Kickstarter darling to a headline act among Australian men’s underwear brands. The label’s signature bamboo boxer briefs put function first, yet still nod to street culture with graffiti-inspired waistbands and limited-edition colour drops that sell out faster than a Bunnings snag stand.
Why this brand stands out in 2025
SLY’s secret sauce is the patented three-panel pouch that lifts and separates, stopping skin-on-skin contact (and therefore chafe) even when humidity hits 90 %. The naturally thermo-regulating bamboo knit stays two to three degrees cooler than cotton, wicking sweat without chemical treatments. Add a “nifty pocket” for keys, condoms or an Opal card, and you’ve got undies built for commuters, travellers and long-haul tradies alike. Sustainability isn’t marketing fluff either: the brand uses FSC-certified bamboo, low-impact dyes and ships plastic-free.
Hero products & ideal wearer
- Chafe-Free Bamboo Boxer Brief – flagship style with 18 cm inseam
- 2025 Limited “Neon Fade” series – bold waistband graphics in small-batch runs
Best suited to guys who clock up their step count, suffer thigh rub, or simply want all-day airflow beneath board shorts or chinos.
Fit, sizing & buying tips
True-to-size from S–XXXL; measure the widest point of your hips and match the chart. The pouch looks snug out of the pack—slide a hand in first to create space before stepping through. Each order carries a 30-day Comfort Guarantee with free size swaps and complimentary AU shipping once your cart tops $100, so trying a pair is practically risk-free.
2. Step One
Sydney-born Step One took social media by storm when blokes started filming their “chafe test” jogs in nothing but these bamboo trunks. Five years on, the brand is still winning converts with transparency, inclusive sizing and cheeky limited prints that drop every month.
Brand snapshot
Each pair is knitted from FSC-approved bamboo viscose, then finished with silky “Ultra-Glyde” panels down the inner thigh to stop fabric-on-skin friction. The entire range is Certified Vegan, Ethical Clothing Australia–accredited and shipped in compostable satchels, so you can upgrade your top drawer without upping your eco-guilt.
Best sellers to try
Start with the Original Boxer Brief for everyday wear or the Super Soft Trunk if you prefer a shorter leg. Collectors jump on the monthly artist collabs—think flamingos one month, retro gaming the next—before they vanish for good.
Price & returns
Prices sit in the $25–$35 sweet spot, but bundle packs push the per-pair cost below $20. Sizes run XS–5XL, and a no-quibble 30-day return window means you can road-test them on a sweaty commute, then swap if they’re not love at first stride.
3. aussieBum
Bondi-born and proudly brash, aussieBum has been splashing colour across blokes’ drawers (and beach bags) since 2001. The label keeps production on home soil, champions body confidence, and still runs tongue-in-cheek ads your mum might blush at.
Brand snapshot
Founder Sean Ashby started with nylon swim briefs sold from his flat; fast-forward two decades and the range spans everyday cotton trunks to metallic party jocks. Everything is cut, sewn and packaged in Australia, so your dollars stay local.
What makes them different
- Wonderjock pouch technology adds lift without padding
- CottonSoft series for guys chasing breathable, classic cuts
- EcoPower line uses recycled nylon from ocean waste
- Limited “Aussie Flag” drops timed around major sporting events
Styles & sizing tips
Most designs ride lower on the hips than supermarket staples. If you’re between sizes or prefer a roomier waistband, order up. Returns run for 90 days, so swapping is easy as.
4. Bonds
Bonds is the no-fuss icon most Aussie blokes grew up with; the logo waistband was probably your first pair of trunks and, a century on, the company still owns the basics aisle. While the marketing has modernised, the brief remains the same: accessible price, reliable fit, and straightforward cotton comfort.
Household name history
Launched in 1915 as a Sydney hosiery maker, Bonds rocketed to fame through the 1940s ‘Chesty Bond’ comic-strip ads and never loosened its grip on everyday essentials. The brand now shifts millions of units through supermarkets, department stores and its own e-comm hub.
Range highlights
- GuyFront Trunk – classic 4-way stretch cotton with soft waistband
- Fit Trunk – sculpted side panels for sleeker lines under jeans
- NEW 2025 Bonds Move – moisture-wicking microfibre for gym or humid commutes
Pros & cons
- Pros: wallet-friendly multi-packs, extensive XS–XXXL sizing, easy to find nationwide
- Cons: traditional flat front offers less support than pouch specialists, colours trend conservative
- Verdict: perfect for bulk top-ups or teens starting their first underwear drawer, but performance seekers may look elsewhere.
5. 2EROS
Melbourne-born but inspired by island getaways, 2EROS caters to blokes who want their underwear to work at the gym and look sharp poolside. Think luxury fabrics, sculpted silhouettes and colours that pop harder than a Bondi sunrise.
Design ethos
Founder Jason Hoeung blends athletic performance with fashion-forward flair. Every pair pairs quick-dry microfibres or bamboo blends with the patented CURV pouch, which lifts away from the thighs to maximise ventilation and shape.
Hero collections
- Adonis – premium Lenzing Modal, gold trims for a touch of Greek-god drama
- V10 – low-rise sportive trunk in bold block colours
- NEW 2025 “Aether” – breathable bamboo with removable
CURVinsert for custom support
Fit & shipping
Cuts run deliberately snug and low; size up if you prefer a relaxed waistband. Orders ship worldwide within 48 hours, loyalty points stack fast, and Aussie customers score free delivery on bundles over $120.
6. TEAMM8
Founded in Sydney in 2008, TEAMM8 sits at the crossroads of activewear and street style, catering to men who want trunks that perform at the gym and still look sharp for post-work drinks.
Brand identity
Started by ex-swimwear model Michal Nicolas, the label champions body positivity, hires LGBTQ+ talent on-screen and off, and keeps production runs small to cut waste.
Top picks
- Score Trunk – medium rise, athletic mesh pouch, rated UPF50 for summer sport
- Dash Brief – minimal coverage, contrast piping, quick-dry nylon/elastane
- Pride Capsule 2025 – limited rainbow waistband sets with $5 per pair donated to Minus18
Why it makes the list
Beyond good looks, every pair uses recycled or OEKO-TEX fabrics, flat-lock seams and a plush 35 mm waistband that won’t sausage your waist after leg day, making TEAMM8 a comfortable, conscious choice.
7. Boody
Founded in Sydney, Boody proves that basics can be both planet-friendly and wallet-friendly. The label built its reputation on everyday bamboo socks and tees, and its move into men’s underwear has cemented its place among Australian men’s underwear brands worth knowing.
Sustainability credentials
Boody carries B-Corp status, uses FSC-certified bamboo grown without irrigation, and runs a closed-loop production system that recycles water and solvents. Every factory is WRAP-audited, so ethical labour isn’t a footnote.
What to buy
- Men’s Trunk – 8 cm inseam, minimalist waistband
- Boxer Brief – longer leg for ride-up prevention
- NEW 2025 Neutrals collection in Stone, Moss and Slate
Fit & feel
The 95 % bamboo viscose knit is buttery-soft, temperature regulating and completely side-seam-free. Fits true to size (S–XL); size chart aligns with standard jeans waist, so ordering is fuss-free.
8. Knobby
Born in Queensland and fuelled by loud art-led prints, Knobby turns the underwear game on its head by shipping a surprise pair to members every month. A slice of each drop funds emerging illustrators and grassroots charities, so your briefs do more good than just holding the goods.
Subscription model
- Sign-up is free; pay $29 per month and score exclusive prints unavailable in stores.
- Skip, swap or cancel anytime in the app—zero lock-in contracts.
Fabric & cut
A recycled poly/elastane blend keeps colours vivid and dries fast, while a breathable mesh pouch boosts airflow. Mid-rise trunk, comfort waistband, flat seams—built for day-long wear.
Ideal customer
Suited to blokes who crave bold prints, effortless gifting and the dopamine hit of new undies arriving monthly.
9. Cocksox
Hand-constructed in Sydney since 2006, Cocksox built its cult status on a sculpted Supplex® pouch that lifts, separates and keeps everything cool during sweltering Aussie summers and late-night dance floors alike.
Overview
Supplex wicks like performance microfibre yet feels like broken-in cotton, and Cocksox doubles down on flair with bold colour blocking, contrast piping and mesh inserts that wouldn’t look out of place on the Mardi Gras runway.
Key styles
- CX76N Sports Brief – mid-rise, wide waistband, moisture-control panels
- CX12 Boxer – longer leg, same pouch, under chinos
- 2025 Mesh line – semi-sheer Supplex for festival wear
Fit notes
- Runs snug: check the centimetre chart and size up if between
- Return window is 30 days, but only on unworn pairs
10. Bushy
Melbourne’s Bushy keeps things simple: small-batch underwear, stitched locally from start to finish, then packed in recycled Kraft boxes. The label serves retro surf-shop vibes yet upgrades the build with premium yarns and slow-fashion ethics.
Made-in-Australia focus
Every panel is cut in Brunswick, sewn in Coburg and finished with labels from a family-run print house—so your dollars stay in the Victorian manufacturing loop.
Product range
- Classic 130 gsm cotton boxer
- 200 gsm superfine merino trunk for cool-weather layering
- Limited artist collabs printed with water-based inks
Why it’s worth a look
Transparent supply chain, retro branding and materials that outlast bulk-store multipacks make Bushy a smart upgrade for blokes who value quality over quantity.
11. Debriefs
Brisbane-based Debriefs proves you don’t need flashy prints to stand out among Australian men’s underwear brands; instead it won fans by perfecting feel-like-skin basics and backing them for life.
Direct-to-consumer model
The label sells only through its site, cutting overheads and channelling savings into higher-grade MicroModal, hidden stitch work and the cheekily named “No Holes” lifetime warranty.
2025 highlights
- “Second Skin” trunk with 3-D jacquard waistband that never rolls
- Earth Tone three-pack in Sand, Moss, Charcoal for minimalist wardrobes
Pricing
Singles land at $28, drop to about $20 when you subscribe for six-month refreshes, and shipping is free Australia-wide on orders over $60.
12. Tradie
Among Australian men’s underwear brands, none wear their blue-collar heart on their waistband quite like Tradie. Built for blokes who’d rather spend coin on tools than trunks, the label trades on humour, hi-vis packaging and no-nonsense comfort that survives a 10-hour shift.
Tradie DNA
Tongue-in-cheek TV spots and “Get ’em on ya!” slogans keep the vibe light, but the mission is serious: value gear that works as hard as a concreter in January. Everything is cut roomy, with thick waist elastic that won’t roll under a tool belt.
Range & materials
Choose from cotton-stretch trunks for everyday wear, breathable bamboo options for sticky climates, or the new TradieTech line woven with moisture-pulling yarns to keep the family jewels dry on site.
Price point
Multi-packs dip under $15 a pair, and you’ll find them hanging in Big W, Bunnings and servo aisles nationwide—proof you don’t need to splash big to keep the boys comfy.
13. Bamboo Body
Known for buttery-soft tees, Bamboo Body added men’s briefs in late 2024; they’re already a go-to for skin-sensitive blokes chasing low-key, eco-friendly basics.
Mission & materials
OEKO-TEX certification backs the label’s claim of purity: 95 % bamboo viscose blended with elastane, dyed in closed-loop facilities that recycle almost all water.
Key features
Expect feather-light fabric that regulates heat, resists odour and stays hypoallergenic; flat seams plus a tag-free waistband keep irritation at bay.
Ideal wearer
Best for men who itch in regular cotton, minimalists wanting logo-free trunks, or anyone prioritising sustainable comfort over loud branding.
14. Underworks
Underworks is the reliable brand Aussies grab when they need fresh basics fast. After decades knitting socks in Melbourne, the family outfit now makes underwear that’s hard-wearing, well-priced and stocked in most supermarket aisles.
Who they are
Still privately owned, design and quality control stay in-house so sizing and materials remain consistent year after year.
Product notes
Cotton-rich trunks (5 % elastane) rival pricier labels, Cool-Pro microfibre pulls sweat away, and the waistband resists sag after dozens of washes.
Value proposition
Multi-packs land near $12 a pair, sizes S–XXL, with regular half-price promos—ideal for refilling the drawer on a shoestring.
15. Mitch Dowd
Melbourne designer Mitch Dowd has been splashing cheeky prints onto Aussie underwear drawers since 1987, proving basics can be anything but boring.
Brand story
Dowd made his name screen-printing cartoon characters on boxer shorts sold from a market stall. Three decades later the label still runs its own studio and partners with local illustrators, licensing icons like The Simpsons and AC/DC while keeping manufacturing runs small to avoid landfill.
What’s new for 2025
- Organic-cotton “Sleep & Street” trunks that double as lounge shorts
- Custom-name waistbands you can personalise at checkout (great gift idea)
- Limited Comic Book capsule in recycled polyester, shipped in compostable mailers
Fit & quality
Mid-rise cut sits just below the navel, flatlock seams nix chafe, and fabric is pre-washed to curb post-laundry shrink. Sizes follow standard Aussie jeans (S–XXL) so your usual waist size should slot straight in.
Next move
From bamboo pouch innovators to budget cotton multi-packs, these 15 Australian men’s underwear brands prove there’s an option for every bum and budget. High-tech labels like Step One and 2EROS chase anti-chafe science, while heritage names Bonds and Underworks keep daily basics affordable. Ethical heavyweights Boody and Bushy up the sustainability stakes; art-driven Knobby and Mitch Dowd nail personality. Before you hit ‘add to cart’, weigh up your non-negotiables—support, fabric feel, eco credentials, size range and price. The best underwear is the pair you forget you’re wearing.
If chronic thigh rub or swampy commutes top your gripe list, start with SLY Collective’s chafe-free bamboo boxer briefs. The patented pouch, longer leg and nifty pocket take the guesswork out of comfort—and the 30-day guarantee means zero risk. Ready to give them a whirl? Check out the full range at SLY Collective and treat the boys to an Aussie upgrade.