This backpack bag by ASOS Collection has been crafted cotton canvas with leather look trims. The details include: a drawstring closure, fold over flap with a pin buckle strap, grab handle to the top, four flap pockets to the main, adjustable shoulder straps and a zipped interior pocket. ABOUT ME Body: 100% Cotton. Trim: 100% Polyurethane. Lining: 100% Polyester