Cold temps won't cramp your style when you're rocking the Alpine Tundra Cap. The warmth stays in with Cross Core™ Aerogel insulation while the cozy flannel liner keeps you toasty. The BreezeBlocker™ windproof ear flaps on this low profile, approachable ball cap can be folded up and away when temps rise. Made from recycled content and PFAS-durable water repellent finish this warm cap is also rated UPF 50+. Features & Specs PrimaLoft® Insulation with Cross Core™ Technology 100% recycled main body fabric Windproof fabric 2½" brim Flannel liner for added warmth BreezeBlocker™ windproof fleece earflaps can be worn up or down PFAS-free durable water repellent finish Adjustable sizing UPF 50+ sun rating Weight: 4 oz/113g