JUNMAO 5 Pack Mens Compression Shirts Short Sleeve - UPF 50+ Rash Guard Athletic Base Layer for BJJ, Workout, Running — Open-Box, 13% Off

【SUMMER-READY COMPRESSION — UPF 50+ BUILT IN】 The ultimate warm-weather training shirt. Built-in UPF 50+ fabric blocks 98% of UVA/UVB rays — train outdoors without worrying about sun damage. A snug, athletic compression fit supports your muscles without overheating, making this the go-to for summer runs, beach workouts, and long sunny training days. If between sizes, size up.

【COMPRESSION THAT WORKS AS HARD AS YOU】 Targeted muscle support reduces fatigue, boosts circulation, and delivers oxygen where you need it most. Whether you're rolling in BJJ, grinding through HIIT circuits, or pushing heavy weight under the barbell — this is the athletic base layer that gives you the winning edge. Train hard, recover harder.

【RUGGED 4-WAY STRETCH — BUILT TO OUTLAST】 Our premium poly-spandex blend delivers rugged 4-way stretch with exceptional shape retention. Engineered to withstand grappling matches, heavy deadlift sessions, and hundreds of washes without bagging out. Full range of motion, zero restrictions — these are muscle shirts designed to move flawlessly with your body and outlast the competition.

【SEAMLESS, IRRITATION-FREE】Crew neck design combined with smooth flatlock seams creates a second-skin fit that won't chafe, scratch, or distract. Perfect as a protective undershirt for long cycling rides, or as a standalone gym shirt for grueling training sessions. All-day comfort from warm-up to cool-down.

【ONE SHIRT, EVERY SPORT】 Versatility redefined — wear it solo for summer runs and gym sessions, layer it under your gi for BJJ, or throw it on as a swim rash guard at the beach. Quick-dry, breathable, and built tough enough for basketball, cycling, hiking, and everything in between. Your all-in-one athletic shirt for any workout, any surface, any season.