June, 20253 MIN READ
The Best Gym Knickers for Every Workout - From Pilates to Powerlifting
A good workout starts with the right foundation. And no, we’re not talking about your trainers. Whether you're holding a plank or heading into a sprint finish, what you wear underneath your gym kit can have a serious impact on how you feel - and move. From keeping everything in place to avoiding awkward readjustments, the right pair of gym knickers should work with your body, not against it. That’s why Boux Avenue’s seamless microfibre underwear is designed with movement in mind. Lightweight, breathable and smooth under clothing, it’s built to support every rep, stretch and step. But not every workout demands the same style - so let’s talk about what works best for each kind of session.
Low Impact Workouts: Stretch, Flow and Forget You’re Wearing Them
For yoga, pilates or a long walk, you want underwear that feels light and invisible. Think second-skin comfort that doesn’t budge. The Seamless Microfibre Thong is ideal here - it’s soft, breathable and moves with your body, without interrupting your flow.
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No VPL means nothing shows under your leggings, and the minimal seams help avoid irritation when you're spending more time on the mat. It's the kind of pair you forget you’re even wearing - and that’s exactly the point.
Medium-Impact Movement: Support That Doesn’t Hold You Back
When you’re cycling, lifting or jumping your way through a dance cardio class, your underwear needs to strike the right balance. The Seamless Microfibre High Waist Thong offers that extra bit of coverage around the waist, sitting neatly under high-rise gym wear without rolling or digging in. It stays put when you're in motion and offers subtle shaping - without making you feel restricted. Flexible, flattering, and barely-there, it keeps up with your every move. You’ll feel held in, but never held back.
High-Impact Movements: Strong, Secure and Squat-Proof
For those sweatier sessions—HIIT, running, weight training—you need something a little more substantial. The Seamless Microfibre High Waist Briefs offer full coverage and a flexible fit that stays in place, even through jump squats or kettlebell swings. Prefer a little more leg coverage? The Kaylee Ultra Light Microfibre Shorts are another go-to, especially if you’re wearing looser bottoms or working out on your period. Both styles feature supportive seams, soft stretch, and moisture-wicking properties to keep you feeling dry, comfortable and confident.
Choosing The Right Fabric for Your Gym Knickers
Fabric really does matter when you’re moving. Gym underwear needs to be breathable, smooth and able to keep up with you. We use microfibre across our seamless range because it’s soft, light and dries quickly, even during a tough session. It’s not just about staying dry, either. Microfibre draws moisture away from the skin and helps regulate your temperature while you train. Plus, its smooth finish means it sits flat under gym leggings or shorts - no rubbing, no bunching, and no visible lines. Every piece from Boux Avenue is designed with comfort, performance and movement in mind. No digging in, no distractions - just gym knickers that do their job so you can focus on yours.
Confidence Starts With The Right Fit
Supportive, breathable, and designed to move with you - underwear for the gym should never be an afterthought. But every body is different, and what works for one person, or one workout, might not suit another. That’s why Boux Avenue offers a wide range of fits - from thongs to to shorts - so you can find what feels right for you. It’s as simple as choosing a style from our wide range of kickers that suits the way you move, and the confidence will follow. Whether it’s a morning stretch or a strength session, your gym knickers might be the first thing you put on but they will be the last thing on your mind.