Nitro Gym Shop on Instagram: "Cats Energy – White Monster Shirt Scratch the surface… there’s a beast underneath. The Cats Energy – Green Monster Shirt is where feral focus meets gym-fueled chaos. Featuring a wild feline graphic powered by that unmistakable green energy, this shirt is made for lifters who train like predators—fast, focused, and ready to pounce on every PR. With a soft, breathable athletic fit, it’s perfect for high-intensity workouts, caffeine-fueled sessions, and gym rats with c