Lightweight, perforated performance shirt for high-intensity training. Our new Laser-Vent™ fabric is a soft, smooth performance warp-knit with extreme stretch and shape retention. It features a treatment that adds antibacterial and moisture-wicking properties. It is strategically perforated in high-sweat areas, with a non-perforated panel across the chest for full coverage. The shirt features our signature swoop hem and side splits with reinforced tack seams for durability. Reflective details add high-vis function at night Model is 5'11 170lbs and usually wears size M. This product fits true to size so he is wearing size M for a standard fit.