Underwear & Socks
Designed to keep you cool when things get hot — our women's underwear collection has you covered. The perfect blend of style and comfort, you’ll feel supported throughout your workout… or box-set marathon. This range is almost too good to keep hidden away. Like what you see? Check out our range below.
Shop Underwear & Socks at Myprotein
The basics that sit closest to your skin deserve the same attention as everything else in your kit. Underwear & Socks at Myprotein are built from soft-touch, stretch-forward fabrics that move with you — whether you're mid-rep, mid-run, or just getting through the day.
From seamless bralettes and multi-pack briefs to crew socks and trainer socks, the range covers everything you need to layer up from scratch. Designed in-house and built for real wear, these are the foundations your wardrobe actually needs.
Who This Collection Is For
Anyone who trains regularly knows that the right underwear makes a difference. This collection is for women who want reliable, comfortable basics that hold up to high-frequency use — whether that's five gym sessions a week or a packed everyday schedule.
It's also for those who'd rather sort their whole basics drawer in one go. Multi-pack formats mean you're stocked up without the faff, and the range of colourways means there's something that works whether you're going neutral or adding a bit of colour into the mix.
When to Wear Underwear & Socks
The 4-way stretch fabrics and soft-touch finishes across the underwear range make these just as suited to the gym floor as they are to everyday wear. Bralettes pair naturally under training tops or worn alone in warmer sessions, while the brief and thong styles in multi-packs give you options for whatever the day calls for.
The sock range covers different sock heights — crew, ankle, and trainer cuts — so there's a fit for every shoe style and activity. Ribbed cuffs keep things in place during longer sessions, and the unisex sizing makes them easy to share or stock up across the household.
Key Features
Soft-Touch Fabric
The underwear and bralette styles are made from a soft-touch material that sits comfortably against the skin without causing friction or irritation — even during longer wear or more intense sessions.
4-Way Stretch
Fabrics stretch in every direction, so there's no pulling, bunching, or restriction as you move. It's the kind of fit that you stop thinking about quickly — which is exactly the point.
Multi-Pack Formats
Briefs, thongs, and socks are available in packs of three or five, making it easy to stock up on everyday essentials. Many packs come in mixed colourways so you're not committing to a single shade.
Ribbed Cuffs on Socks
Crew socks feature ribbed cuffs that grip without cutting in, keeping them up and in position throughout your session or day — no mid-workout adjusting required.
Popular Picks
MP Unisex Crew Socks (3 Pack) - White — Built to stay put through any session, these crew socks feature ribbed cuffs, an arch band, and a ankle-to-calf silhouette that keeps everything in place.
MP Women's V-neck Bralette - Fudge — Made from soft-touch, 4-way stretch fabric with adjustable straps, this bralette moves with you and fits the way you actually want it to.
MP Women's Mid Rise Bikini Brief (3 Pack) - Blush/Rose Red/Fudge — A cotton-rich, 4-way stretch fabric and soft-touch finish make this three-pack of bikini briefs a no-fuss everyday choice that keeps up with whatever you're doing.
FAQs
What sizes are available in the underwear range?
The women's bralettes and underwear styles are available in a range of sizes to suit different fits. Check the individual product pages for the full size guide — these include specific measurements to help you find the right fit rather than guessing by label size alone.
What are the underwear and socks made from?
Materials vary by product, but the underwear range uses soft-touch, 4-way stretch fabrics designed to feel comfortable against the skin during movement. Socks are knitted for durability and everyday wearability. Full fabric compositions are listed on each product page.
How should I wash the bralettes and underwear?
Always follow the care label on the individual garment. As a general rule, machine washing on a gentle cycle at a low temperature will help preserve the stretch fabric and keep everything looking its best for longer. Avoid tumble drying where possible.
Are the socks suitable for the gym?
Yes — the crew, ankle, and trainer sock styles all work well for gym use. Ribbed cuffs keep them in place during training, and the different heights mean you can match the sock to your shoe and activity. Trainer socks sit lower in the shoe, making them a good pick for sessions where you want a minimal feel.
Who designs the underwear and socks?
Everything in the range is designed by Myprotein's in-house design team. That means the fit, fabrics, and colourways are all developed with Myprotein customers specifically in mind, rather than being off-the-shelf basics.
Which underwear style should I choose?
It comes down to personal preference and what you're wearing them with. The Mid Rise Bikini Brief (3 Pack) in Blush/Rose Red/Fudge is a solid all-rounder — the soft-touch fabric and 4-way stretch make it comfortable for training and everyday wear, and the mixed colourways give you flexibility. If you prefer minimal coverage under tighter kit, the thong or g-string styles are worth a look. The bralettes — like the V-neck style in Fudge — work well as a light layer under training tops or as a standalone top during warmer sessions.
Do the multi-pack socks come in mixed colours?
Some do, yes. Packs like the White/Black/Grey Marl crew socks or the Black/White option give you a mix in a single purchase, while others like the solid White or Black packs keep things consistent. The range covers both, so you can go mixed or keep it uniform — whatever works for you.
Are the socks unisex?
Yes, the sock range is unisex. They're available in a range of sizes to accommodate different fits, so check the size guide on the product page to find the right one for you.