Cold temps won&';t cramp your style when you&';re rocking the Alpine Tundra Cap. The warmth stays in with Cross Core(TM) Aerogel insulation while the cozy flannel liner keeps you toasty. The BreezeBlocker(TM) windproof ear flaps on this low profile, approachable ball cap can be folded up and away when temps rise. Made from recycled content and PFC-durable water repellent finish this warm cap is also rated UPF 50+. Features & Specs: PrimaLoftA(R) Insulation with Cross Core(TM) Technology 100% recycled main body fabric Windproof fabric 2A 1/2" brim Flannel liner for added warmth BreezeBlocker(TM) windproof fleece earflaps can be worn up or down PFC-free durable water repellent finish Adjustable sizing UPF 50+ sun rating Weight: 4 oz/113g Care & Content: Fabric content: SHELL: 100% POLYESTER, FILL: 100% POLYESTER Washing and care instructions: Hand wash cold, line dry. Do not bleach, iron, or dry clean. Packing instructions: Packs flat, do not fold or crease brim Fabric content: SHELL: 100% POLYESTER, FILL: 100% POLYESTER Washing and care instructions: Hand wash cold, line dry. Do not bleach, iron, or dry clean. Packing instructions: Packs flat, do not fold or crease brim