

The cult collection from Gymshark that sells out every time. Featuring powerful silhouettes, heavy-duty compression and a physique-enhancing design you'll feel stronger just for putting on: this is Onyx.

Onyx is sold out, but check out these other compression tops that’ll also make your arms look huge.
oversized fit
GS Stealth Blue/GS Deep Petrol Blue
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You’ve heard the hype, and trust, it’s well deserved. Our most aesthetic gym shirt, built to maximise the physique you’ve put the work in for, Gymshark Onyx is the definition of a cult classic.
Defined by powerful silhouettes, heavy-duty compression, and a physique-enhancing fit, every piece is finished with a signature 3D logo. From short and long sleeve compression tees to tanks and the latest v5 hoodies, this is the collection that demands a head down, no distraction, just work, type-attitude.
Built for serious lifters, Onyx has earned its reputation as the ultimate gym uniform. Whether you’re after the OG V1 feel or you’re waiting for the latest drop, this is the collection everyone’s watching. It drops, and it doesn’t hang around: sold out in minutes for a reason.
This is Gymshark Onyx.