The Vigor 1/4 Zip from Outdoor Research is a layering piece made for cold weather adventures. It comes with ActiveTemp, which is a thermo-regulating technology that adjusts to your body temperature to keep you comfortable and dry while on the slopes or when doing other Winter activities. The grid fleece fabric wicks sweat and gives high breathability for a comfortable fit wherever your adventures take you. Wicking, Quick Drying, Breathable, Thermo-Regulating ActiveTemp Treatment, UPF 30, Security Zip Chest Pocket, Thumb Holes, Dynamic Reach, Material: Grid-Back Fleece: 94% Polyester, 6% Spandex, Warranty: Lifetime, Closure Type: Partial Zip Top, Type: Turtleneck or Layering, Material: Synthetic, Wicking Properties: Yes, Sleeve Type: Long Sleeve, Recommended Use: Snow, Sun Protection: Yes, Quick Drying: Yes, Moisture Wicking: Yes, Model Year: 2020, Product ID: 577226, Model Number: 271449-1288007, GTIN: 0727602677606