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Interpro Fitness
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Men's Muscle Fit T Shirt - Grey
£21.00
— this colour is selling fast.
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Free UK delivery over £60
Free 28-day returns
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Designed to showcase the work, our men's muscle fit t-shirt in grey sits close through the shoulders, chest and arms for a defined athletic fit. A clean white IF logo on the left chest keeps the finish sharp and understated.
Made with stretch fabric, the grey muscle fit t-shirt for men's gym sessions moves naturally through every rep without restricting your movement or losing its shape. Built for training, but comfortable enough to wear on rest days too.
The men's gym t-shirt in grey brings a versatile neutral into your rotation, pairing effortlessly with joggers, shorts or darker layers. Clean fit. Simple design. Built for training.
United Kingdom
Standard Delivery — £3.99
Estimated delivery: 2–3 working days
Free delivery on orders over £60.00
Next Day Delivery — £4.99
Order before 5pm for next working day delivery
Free next-day delivery on orders over £100.00
Exchange and returns accepted within 28 days. Items must be unworn and in original packaging. View full returns policy
Men's Muscle Fit T Shirt - Grey
£21.00
Why Interpro
How our gym wear compares to the typical high street alternative.
| Feature | Interpro Fitness | Typical alternative |
|---|---|---|
| Heavyweight fabric | ||
| Free UK delivery over £60 | ||
| Returns window | 28 days | 14 days |
| Student discount | 15% off | |
| Buy more, save more | Up to 20% off |
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Frequently Asked Questions
Regular fit and true to size. If you prefer a relaxed, oversized look, order one size up.
Machine wash cold with like colours, do not tumble dry, and iron on low if needed. Avoid bleach so the colour and logo last.
UK standard delivery is 2 to 3 working days. Order before 5pm for next day delivery.
Yes, within 28 days, unworn and in the original packaging.
Still have a question about sizing or delivery? Contact our team
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Size Guide
Body measurements, not garment measurements. If you fall between two sizes we recommend sizing up. If your waist is one size smaller than your hips, go with the larger size.
| Size | Bust (cm) | Waist (cm) | Hip (cm) |
|---|---|---|---|
| XXS | 76.5-79.5 | 58.5-61.5 | 85.5-88.5 |
| XS | 79.5-85.5 | 61.5-67.5 | 88.5-94.5 |
| S | 85.5-91.5 | 67.5-73.5 | 94.5-100.5 |
| M | 91.5-97.5 | 73.5-79.5 | 100.5-106.5 |
| L | 97.5-103.5 | 79.5-85.5 | 106.5-112.5 |
| XL | 103.5-109.5 | 85.5-91.5 | 112.5-118.5 |
| XXL | 109.5-115.5 | 91.5-97.5 | 118.5-124.5 |
Prefer a tighter, second skin fit? Take the smaller size. Prefer room to move? Take the next size up.
1
Bust
Place the tape under your arms at the fullest part of your chest.
2
Waist
Measure the full circumference of your natural waistline, just above your hips. Do not pull the tape tight, leave a little give.
3
Hip
Measure the full circumference at the fullest point of your hips, including your seat.
4
UK size
XXS 2-4 • XS 6-8 • S 8-10 • M 10-12 • L 12-14 • XL 14-16 • XXL 18-20