trendy waterproof teens big travel backpack material:nylon size:75X37X24CM trendy waterproof teens big travel backpack size: 75X37X24CMMaterial: nylondurable, and economic,stylishComfortable ... ,shape,color or material like pu,satin,canvas,polyester,nylon,microfiber,or otherLogo Available:Silkscreen/ heat transfer/ rubber logo ... become your reliable parter! trendy waterproof teens big travel backpack