Classic Crew
The one that just works.
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Colour note
Product colours may look slightly different in real life depending on lighting, screen settings, and photography.
Important
Verify your size and colour before checkout. Changes aren't accepted once ordered.
Fit tip: For a comfortable fit, try one size up from your usual size. If you normally wear a 40, try L (42) for your preferred fit. Check the size chart to find your perfect size.
The Unofficial Clubs
Unofficial clubs. Very official obsessions.
Today's workout? Absolutely nothing. And we're doing it exceptionally well.
Leg day? Not today.
Cardio? Maybe tomorrow.
Recovery? Now that's a plan.
Welcome to the Rest Day Royalty Club Unisex Oversized T-Shirt – made for gym-goers who respect their recovery, fitness enthusiasts who know when to slow down, and people who believe that doing nothing can sometimes be the most productive thing you do.
Because even royalty needs a day off.
👑 Rest-day energy: A playful gym-humour graphic tee for fitness lovers who take their recovery seriously.
Relaxed oversized fit: An easygoing silhouette for laid-back comfort.
Effortless styling: Pair it with joggers, shorts, cargos or your favourite everyday essentials.
Off-duty uniform: Perfect for recovery days, coffee runs, casual outings and post-workout lounging.
Find your people: Part of PROTEEIN's Unofficial Clubs collection – unofficial clubs, very official obsessions.
Fit: Unisex oversized
Fabric: 100% cotton
Fabric weight: 240 GSM
Neckline: Crew neck
Available sizes: XS, S, M, L, XL, XXL
Care: Wash inside-out in cold water. Turn inside-out before ironing and follow the garment's care label.
Zero guilt about taking a break.
Full permission to lounge like royalty.
The occasional promise to hit the gym tomorrow.
Unlimited respect for recovery days.
If you've ticked all four, congratulations. You're officially royalty.
Add the Rest Day Royalty Club Unisex Oversized T-Shirt to your cart and make your off-duty uniform official.
PROTEEIN – Find your club. Wear your obsession.
| Size | Length | Chest | Shoulder | Sleeve Open | Sleeve Length |
|---|---|---|---|---|---|
| XS | 27 | 40 | 18 | 6 | 7 |
| S | 28 | 42 | 19 | 6.5 | 8 |
| M | 29 | 44 | 20 | 7 | 9.5 |
| L | 30 | 46 | 21 | 7.5 | 10.5 |
| XL | 31 | 48 | 22 | 8 | 11.5 |
| 2XL | 32 | 50 | 23 | 8.5 | 12.5 |
PROTEEIN / STYLE YOUR PLAIN TEE
STEP 1 OF 4
Both are everyday tees. The difference is how much room you want.
The one that just works.
The one that gives you room to breathe.
Think Classic = closer to your usual T-shirt fit.
Think Oversized = intentionally more room everywhere.
Classic: “I like my T-shirts to behave.” 👔
Oversized: “I like my T-shirts to have personal space.” 😎

The everyday uniform
Fabric
Premium cotton with a soft, substantial hand feel.
Fit
Relaxed through the body, finished with a clean crew neck.
Colour
A considered palette designed for everyday wear.
Made for
Layering, living, and everything in between.