The S.O. League Wool Bomber from G-Star features: Genuine leather sleeves. Satin interior. Zipper with snap and hoop closure down front. Patch decor on left side of chest. Fabric: Shell: 65% Wool, 35% Polyester, Sleeves: 100% Leather, Ribbing:85% Nylon, 15% Elastane, Lining/Sleeve lining: 100% Polyester.