Underwear & Socks

Shop Underwear & Socks at Myprotein

Training starts from the ground up, and the right underwear and socks make all the difference to how you feel during every session. This collection brings together essentials designed for movement, comfort and durability—whether you're lifting, running or just powering through a busy day.

From crew socks that stay put during heavy sets to trainer socks built for high-impact cardio, each piece is made to handle whatever you throw at it. Breathable fabrics, reinforced construction and classic fits mean you can focus on your workout, not what you're wearing underneath.

Who This Collection Is For

These pieces suit anyone who values function and simplicity in their training wardrobe. Whether you're new to the gym or deep into a structured programme, reliable basics matter. This range works for lifters who need socks that won't slip mid-squat, runners looking for cushioned support, and anyone who wants underwear that moves without restriction.

If you train multiple times a week, you know how quickly basics wear out. This collection is built for people who need gear that lasts—pieces you can rotate through without worrying about quality dropping off after a few washes. No fuss, just solid everyday essentials.

When to Wear These Pieces

Crew socks work across strength training, cycling and general gym sessions—they provide coverage without bunching in trainers. Trainer socks sit lower, ideal for running or HIIT where you want minimal material and maximum breathability. Both styles handle sweat without feeling heavy or losing their shape.

Beyond the gym, these basics transition easily into everyday wear. Pack them for weekend trips, wear them for long walks, or just keep them in rotation as your go-to socks for anything active. They're designed to perform under pressure but comfortable enough to wear all day.

Key Features

Breathable Fabric Blends

Moisture-wicking materials help keep feet dry during intense sessions. The fabrics manage temperature well, so whether you're warming up or cooling down, comfort stays consistent throughout your workout.

Reinforced Construction

Targeted cushioning in high-wear areas like heels and toes extends the life of each pair. Reinforced stitching means these socks hold up to frequent washing without losing elasticity or developing holes.

Secure Fit

Ribbed cuffs and arch support prevent slipping and bunching inside trainers. The fit stays snug without feeling tight, so you're not constantly adjusting mid-set or mid-run.

Multi-Pack Value

Three-pack options make it easy to stock up on essentials without compromising on quality. Having multiple pairs in rotation means you're never caught short between washes, especially during busy training weeks.

Popular Picks

Need reliable everyday socks? MP Unisex Crew Socks (3 Pack) - White - Purpose-built running socks with targeted cushioning for impact absorption. Lightweight construction won't weigh you down during long runs, while arch support keeps everything stable.

FAQs

How do I choose between crew socks and trainer socks?

Crew socks offer more coverage and work well for strength training, cycling or general gym use—they protect your ankles and won't slip down inside taller trainers. Trainer socks sit lower, making them ideal for running or HIIT where you want less material and better airflow. Think about your main activities: if you're lifting heavy or need extra ankle coverage, go crew. If you're logging miles or doing a lot of jumping, trainer socks keep things light.

What size should I order?

Check the size guide on each product page for specific measurements. Generally, these socks are designed to fit true to standard UK shoe sizes. If you're between sizes, consider whether you prefer a snugger or more relaxed fit—going up gives a bit more room, while sticking to your usual size keeps things secure.

How should I care for these socks to make them last?

Machine wash at 30°C with similar colours and avoid fabric softener, which can break down moisture-wicking properties. Turn them inside out before washing to protect the exterior fibres. Air drying extends their life, but if you use a tumble dryer, keep it on a low heat setting to prevent shrinking or damaging elasticity.

Will these socks stay up during workouts?

Yes—ribbed cuffs and arch support keep them in place without cutting into your legs. The elastic holds tension well even after multiple washes, so you won't be constantly pulling them up mid-set. If you find any pair starts to slip, it's usually a sign they've reached the end of their usable life.

Can I wear these socks outside of training?

Absolutely. While they're built for gym performance, the comfort and durability make them solid everyday options. Crew socks work well with casual trainers or boots, and trainer socks are great for warm-weather days when you want minimal coverage. They handle long days on your feet just as well as they handle training sessions.

Who designed these products?

Myprotein's in-house design team developed this collection, focusing on what actually matters during training—fit, durability and fabric performance. They've tested these pieces through countless workouts to make sure they hold up to real-world use, not just look good in photos.

Are these socks suitable for running long distances?

The MP Running Socks are specifically designed with distance in mind—targeted cushioning reduces impact on heels and toes, while breathable fabric manages moisture during extended runs. If you're training for a half marathon or beyond, having multiple pairs in rotation helps keep your feet comfortable and reduces the risk of blisters from worn-out socks.

How many pairs should I have in rotation?

It depends on how often you train. If you're in the gym four to five times a week, having at least two three-packs gives you enough pairs to rotate without needing to wash constantly. More frequent trainers might want three packs to cover a full week plus spares. Having extras also means you're not rushing laundry between sessions.