1)Product:bicycle cover 2) Materail: waterproof ployster material (190t.170T.210D.420D) 3)Size: S.M. ... material as the cover.Protect from wind,rain,sand,dirt,etc.Strong,durable.Made fromPEVA,EVA,PE nylon or polyester...Waterproof,UV resistant ... .Fine sewing stitching.Size...pls contect us for the details. waterproof nylon/ ployster bicycle cover