New Product Main Material Is Polyester,Warm Plush Inner Lining One Size Fits Most Head Circumference 22.0-23.5 Inch(56-60cm), And The Adjustable Chin Strap Makes The Hat More Fitting Removable Windproof Mask Keep Your Face Warm,And Adjustable Chin Strap For Comfortable Fit The Hat Is Really Thick And Durable, It's Windproof, Warm And Toasty, Necessary Accessories In Cold Winter Perfect Head Gear For Outdoor Activities Such As Skiing,Snowboarding,Hiking,Hunting,Trapping And Any More Others.