Sara Laptop Backpacks is made of durable polyester. Main pocket includes convenient computer pocket, front Pocket with earbud port provides additional storage, mesh and fabric pocket on the sides for holding bottle. Built-in USB port is convenient to charge your phone. Adjustable foam straps and carrying handle offer you comfort carrying. It would be your necessity during school time, commuting, outdoor activities. 2DAYS/3DAYS Rush available upon request.