FIT & DESIGN: Regular fit long sleeve running shirt 4-way stretch fabric moves with you through your stride Breathable fabric keeps air circulating Balaclava-style 3-piece single layer hood protects you from cold weather Features a ponytail vent Thumbholes help the sleeves stay in place TECHNOLOGY: BodyBreeze wicking technology pulls moisture away from the skin and boasts a rapid evaporation time so you stay dry, cool and comfortable BodyFree technology inhibits odor and lasts wear after wear so you stay fresh BodyWarm Insulated paneling helps retain body heat BodyUV UPF technology helps protect your skin against harmful UV rays (rated according to ASTM D6603) Smoke-free, pet-friendly home.