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 deserve the same attention as the rest of your kit. Men's cotton boxers and crew socks built for everyday wear — comfortable, durable, and designed to hold up whether you're training or just getting on with the day.
From multi-pack boxers in classic colourways to crew, ankle, trainer, and invisible sock styles, there's enough range here to restock your drawer properly and keep things simple.
Who This Collection Is For
Anyone who wants reliable everyday underwear and socks without overcomplicating it. Whether you're rotating through gym sessions, long working days, or both, these pieces are built to handle consistent wear.
If you like stocking up in multi-packs — threes and fives — rather than buying individual items, this range is set up exactly for that. Mix colourways, grab a few styles, and be done with it.
When to Wear Underwear & Socks
Soft-touch cotton boxers are the kind of thing you reach for every day — comfortable enough for the gym and relaxed enough for the rest of it. Pair them with crew or ankle socks depending on what you're wearing and where you're heading.
Trainer and invisible sock styles are ideal when you're in low-cut trainers and don't want sock lines showing. Crew socks are the go-to for the gym, running errands, or pulling on with casual fits. Running socks offer a bit more structure for those putting in mileage.
Key Features
Soft-Touch Cotton Blend
The boxers are made from a soft-touch cotton blend that feels comfortable against the skin all day — no scratching, no bunching, no drama.
Ribbed Cuffs That Stay Put
Crew socks come with ribbed cuffs designed to keep them exactly where you put them. No sliding down mid-workout or mid-commute.
Branded Elasticated Waistband
The boxers feature a branded elasticated waistband that sits securely without digging in — the kind of fit that works whether you're training or not.
Multi-Pack Options
Both socks and boxers come in three-packs and five-packs, so you can stock up in one go. Multiple colourways and styles mean you can build out a full rotation without any faff.
Popular Picks
Men's Cotton Boxers (3 Pack) - Black — Cut from a soft-touch cotton blend with a branded elasticated waistband, these boxers are built for all-day comfort without a second thought.
MP Unisex Crew Socks (3 Pack) - White — With a crew silhouette that covers the ankle and lower calf, ribbed cuffs that stay put, and an arch band for a secure fit, this three-pack is a gym bag staple.
MP Unisex Crew Socks (5 Pack) - White — Everything you get in the three-pack — crew coverage, ribbed cuffs, and an arch band — just in a five-pack for those who'd rather restock less often.
FAQs
What men's cotton boxers are available?
Boxers come in packs of three and five, with options in black, white, grey, and mixed multipacks. They're made from a soft-touch cotton blend with a branded elasticated waistband — straightforward, comfortable, and built to last through regular wear and washing.
What sock styles does the range include?
There are five sock silhouettes to choose from — crew, ankle, trainer, invisible, and running. Crew socks are the most versatile and come in the widest range of colourways. Trainer and invisible styles sit low in the shoe, while running socks offer a bit more structure for higher-impact activity.
How do I find the right size for boxers and socks?
Boxers follow standard clothing sizing — S, M, L, XL and so on. Socks are sized by shoe size range, so check the size guide on the product page before buying. If you're between sizes on socks, sizing up tends to give a more comfortable fit.
What are the socks made from?
The socks use a cotton-blend construction with ribbed cuffs to help them stay in place. The exact composition varies slightly by style — the product page for each lists the full fabric breakdown if you want the specifics.
How should I wash the boxers and socks?
Machine wash at 30°C and tumble dry on a low setting where possible. Avoid bleach and high heat, which can break down the fabric and elastic over time. Following the care label on each item is the easiest way to keep them in good shape wash after wash.
Who designed these products?
The underwear and socks range was designed by Myprotein's in-house design team, focused on creating everyday basics that actually hold up — in terms of fit, comfort, and durability.
Are the socks suitable for the gym?
Yes — crew and ankle styles work well for gym sessions, and the running socks are a solid choice if you're on the treadmill or training outdoors. The ribbed cuffs keep them secure during movement, so they won't shift around mid-set.
Can I mix styles and colours across a pack?
The multipacks come pre-configured in set colourways — some are single-colour, others are mixed. Check the product listing for exactly what's included in each pack before you order.