Under Armour Men's No Breaks GORE WINDSTOPPER  Neck Gaiter Shell: 87% Polyester/13% Elastane; side Panel: 100% Polyester Imported Quilted exterior with soft, warm fleece lining Soft ColdGear EVO insets deliver an ultra-warm feel, with no extra weight Anti-odor technology prevents the growth of odor-causing microbes Material wicks sweat & dries really fast