On the trail, the rabbit Men's Fastrock Sleeveless feels purpose-built for your outdoor adventures. Designed to stay light and breathable, the shirt wicks away sweat so you stay comfortable deep into the run. The TrailGuard™ fabric adds durability to handle brushes and snagging, while the bonded seams sit smooth against the skin, reducing chafing. Subtle rear perforations encourage airflow, keeping you focused on the run rather than the heat, and the sleeveless design allows your arms greater range of motion.