- Water resistant- Wind resistant- cotton- fabric version of the iconic Woolrich outerwear, the Sierra jacket features a modern, dynamic silhouette without compromising protection from the elements. Crafted from wind and water resistant Ramar fabric, made from a blend of cotton and recycledylon, and generously padded with lightweight duck down. The delicate horizontal quilting ensures you stay warm without excessive bulk, while theew construction with detachable hood and a host of practical details ensure it will become a must-have in your wardrobe for seasons to come.Material: Outer fabric: 64% Cotton 36% PolyamideInner Fabric: 100% PolyamidePadding: 85% Down 15% Feathers - Fill Power 750Product Style ID: CFWOOU0481MRUT2348.