Adv Windblock Knit Hat Is A Rib-Knit Nordic Ski Hat Designed For Intense Cross-Country Skiing In Cold And Windy Conditions. The Hat Is Made Of Functional Materials And Features A Wind-Blocking Fabric At Front And Polyester Fleece Lining For Warmth, Comfort And Efficient Moisture Transfer. Shaped To Protect The Ears.Features:- Rib-Knit Acrylic- Protective Wind-Blocking Fabric At Inside Front- Warming Polyester Fleece Lining Inside- Shaped To Protect The EarsSpecifications:Material:- Face: 100% Acrylic, Lining: 100% PolyesterCare:- Machine Wash Cold On A Program For Delicate Textiles.