This headband packs a ton of warmth and features! Our EarzBand is cut wide and tapered to cover your ears and forehead. We selected a 4-way stretch fabric, so the fit is universal. Polartec Wind Pro® is a fantastic fabric engineered for performance in cold conditions. We chose a hard-faced (meaning smooth on the outside) fabric with fleece on the inside for use under all types of helmets and it looks great without one! It is thin enough to not affect your helmet’s fit and it still is waterproof, wind resistant, provides insulation and is abrasion resistant. All these great characteristics and it is still breathable and machine washable! And for the icing on the cake: it is made in the USA (the product and the fabric!) Our style choice has a subtle grid pattern reminiscent of carbon fiber weaves! What’s not to love?!