Zan Headgear SportFlex Helmet Liner/Beanie - Mens Black and White Flag. Flat seams in order to fit comfortably underneath helmets or alone while providing coverage of the head and ears. Fabric is brushed for ultimate softness and has a 4 way stretch for customizable fit. Provides 50+ UV protection and constructed of 87percent polyester and 13percent elastane. Specifications for Zan Headgear SportFlex Helmet Liner/Beanie - Men's: Manufacturer: Zan Headgear Gender: Unisex Age Group: Adults Hat Size US: One Size Hat Style: Beanie Fabric/Material: 87percent Polyester 13percent Elastane Activity/Occasion: Outdoor Package Contents: Zan Headgear SportFlex Helmet Liner/Beanie - Men's Zan Headgear WHLL091: SportFlex Helmet Liner/Beanie - Mens Black and White Flag