Dickies Men's Performance System Reversible Poly/Fleece Breathable Fabric Knit Beanie Moisture Wicking: Moisture management for optional temperature balance Warmth: Traps heat and air next to body to keep you warm Bi-Stretch: Stretch fabric and ergonomic design moves with our for comfort One Size Fits Most : Intended for Ages 14 and Older Shell 96% Polyester 4% Spandex Lining: 100%Polyester