Throw on the GSX Lightweight Performance Running Shirt keeps you cool, comfortable, and free to move for workouts or any active pursuits. This short-sleeve running tee is knit from ultra-durable 100% polyester interlock fabric which wicks moisture away from the skin, ensuring that you stay dry. An antimicrobial finish helps reduce odors for all-day freshness. Built-in UPF 30+ sun protection shields your skin against harmful UV rays for added comfort. Mesh panels at the underarms increase breathability and help prevent overheating. Flatlock seams reduce chafing and allow for easy layering, while ergonomic design lines provide greater freedom of movement. The low-profile crew collar ensures a snug, but not too tight fit. Reflective GSX logo offers increased visibility in low-light conditions. Imported.