Underwear & Socks
Designed to keep you cool when training hard — our men's underwear collection has you covered. The perfect blend of style and comfort, you’ll feel supported throughout your workout or that well-earned rest day.
Want to discover more? Check out our range below.
Shop Underwear & Socks at Myprotein
The basics matter more than people give them credit for. Myprotein's men's underwear and socks are built for everyday comfort and gym-ready performance — soft where they need to be, secure where it counts, and designed to keep up with whatever's on your schedule.
From crew socks to invisible trainers, multipacks to boxers, the range covers every base. Whether you're stocking up your gym bag or refreshing your everyday drawer, there's a format here that works.
Who This Collection Is For
This is for anyone who wants their underwear and socks to just work — no bunching, no slipping, no distractions. If you're in and out of the gym regularly, switching between training sessions and the rest of your day, having the right foundation layer makes that transition a lot smoother.
It's also for the practical buyer who'd rather grab a multipack than think too hard about it. The range is straightforward, well-made, and built for the kind of daily use that puts basics through their paces.
When to Wear Underwear & Socks
The gym is the obvious starting point — crew socks with ribbed cuffs stay put during training, and boxer shorts with a secure waistband mean one less thing to think about mid-session. Trainer socks and invisible styles are just as at home running errands or heading into work.
For running and higher-output cardio, the Running Socks with their ombre design offer a more sport-specific fit. The multipack formats across the range mean you've got enough covered for the whole week without constantly restocking.
Key Features
Soft-Touch Fabrics
The Men's Cotton Boxers use a soft-touch cotton blend that feels comfortable against the skin all day long — no rough seams, no scratchy labels, just a clean, easy wear from morning to evening.
Ribbed Cuffs That Stay in Place
The crew socks feature ribbed cuffs that grip your leg and hold their position throughout the day. No folding down, no sliding into your shoe — they sit where you put them.
Multiple Silhouettes in One Range
Crew, trainer, invisible, and running sock styles sit alongside cotton boxers, giving you the flexibility to pick the right cut for any occasion. Mix and match across the range without compromising on quality.
Multipack Value
Available in 2, 3, and 5-pack formats, the socks and underwear are designed to be bought in bulk. One order covers your gym bag and your everyday rotation without the faff of restocking every other week.
Popular Picks
Men's Cotton Boxers (3 Pack) - Black — Built for all-day wear, these three-pack boxers are made from a soft-touch cotton blend with a branded elasticated waistband that keeps things comfortable from morning to night.
MP Unisex Crew Socks (3 Pack) - Black — These crew socks cover your ankle and lower calf, with ribbed cuffs and an arch band that keep them securely in place through any session — available in black.
MP Unisex Crew Socks (3 Pack) - White/Black/Grey Marl — The same reliable crew fit with ribbed cuffs and arch support as the black, but in a white, black, and grey marl mix if you want a bit of variety in the sock drawer.
FAQs
What sock styles are available in this range?
There are four sock silhouettes to choose from: crew socks that cover the ankle and lower calf, trainer socks that sit just above the shoe, invisible socks that sit below the ankle line, and running socks designed for higher-output activity. All are available in multipacks, with crew socks available in packs of three or five.
Are the socks unisex?
Yes — the sock range is labelled as unisex, so the sizing and styling work across genders. The Men's Cotton Boxers are the only item in this category designed specifically for men.
What sizes do the socks and boxers come in?
Sock sizes are typically available in standard UK sizing bands, covering most adult feet. Boxers are available in a range of waist sizes from small through to extra-large. Check the individual product pages for specific size guides before ordering.
What are the socks and boxers made from?
The Men's Cotton Boxers are made from a soft-touch cotton blend, while the socks use a mix that balances structure with comfort. Full fabric compositions are listed on each individual product page if you want the exact breakdown.
Who designed the underwear and socks?
Everything in this range was created by Myprotein's in-house design team, developed with everyday gym use and all-day wear in mind.
How should I wash the socks and boxers?
Machine washing on a cool cycle is the safest option for keeping the shape and elasticity intact over time. Avoid tumble drying on high heat, and always check the care label on the specific product before washing.
Are these socks suitable for running and gym training?
The crew and trainer socks work well for general gym sessions, with ribbed cuffs keeping them secure during movement. For running specifically, the Running Socks are the better pick — they're cut for a sport-specific fit and come in a 2-pack for easy rotation.
Do the invisible socks stay on during workouts?
The invisible socks are designed to sit below the ankle without sliding off, making them a solid choice for low-cut trainers worn at the gym or day-to-day. They're available in both black and white in a 3-pack format.