HP Velotechnik Tech Tee for Recumbent and Trike Riders, and All-Around High Energy Outdoor Enthusiasts Relaxed-fit shirt works tirelessly to optimize your comfort during high-energy activity Polyester/spandex blend is breathable, and efficiently wicks sweat from your skin and hastens its evaporation Dries quickly so you won't feel chilled by a strong sudden breeze or feel clammy on hot or humid days Comfortable design and fabric allows for fluid, unrestricted movement Provides excellent UV protection