Pearl iZUMi Men&#39;s Octane Pittard&#39;s Cycling Glove, Black, Medium Pittards leather palm provides the ultimate grip and control Coolmax mesh on back of hand keeps your hands cool and dry Leather gets softer and grippier with moisture, and is 100% washable Palm: 100% Leather, Back: 55% Nylon/45% Polyester, Wiping Surface: 100% Polyester