evo.com | Outdoor Research Activewear Jackets > Warm where it needs to be, stretchy where it counts, the Outdoor Research Deviator Fleece Half Zip uses hybrid-mapped construction to put moisture-wicking VerticalX(TM) Octa insulation at the core and a polyester-spandex blend at the collar, arms, and underarms for full range of motion. The 13" front zip handles ventilation when things heat up, and thumbholes keep sleeves in place when they don't. Breathable Front/Back Body 100% Polyester Chafe-Free Design with Raglan Sleeves and Dynamic Reach Arms & Underarms 94% Polyester / 6% Spandex Movement Mirroring Stretch | Women's Outdoor Research Deviator Fleece Half Zip 2027 - X-Large Purple Jacket | Spandex/Polyester