Designed to provide cooling comfort in a sporty short sleeve design. Fieldsheer's Mobile Cooling shirt is the perfect shirt whether hitting the gym or hitting the beach on a hot summer day. DriComfort GEO 365 technology uses water absorbing and conductive minerals and to pull moisture and heat from the skin and uses the body's heat to make sweat evaporate 4x faster than traditional knits, enhancing the evaporative cooling of the fabric. There are no harsh chemicals or topical treatments that might wash out. We add UPF50 sun block to protect against harmful UV rays, and Odorsheer oder control to guard against odor causing microbes. Made from recycled polyester and spandex, the Mobile Cooling shirt will resist wrinkling and hold its shape for years to come.