A pump cover is the layer you throw on the second the pump shows up — heavy enough to hold its shape, built to move with you between sets. The Arm-Plifier is ours: a heavyweight cotton cut-off vest with a drop-shoulder cut that frames traps and delts instead of hiding them.

We didn't design this like a t-shirt. We designed it like a stack — something engineered for one job and built to hold up to repeat use, wash after wash, session after session. 100% cotton, cut for training, not for sitting at a desk.

Available in four standard colorways, plus the limited Basalt Onyx edition when it's live. Every piece ships packaged like what it is — the supplement you wear.

Not sure on sizing? Check our size guide before you order — the Arm-Plifier runs true to a boxier, gym-ready fit.

Amero Gear products are performance apparel, not dietary supplements. For athletic use only.