This OGIO logo backpack is built for heavy-duty use and abuse. It is made of 300 denier x 900 denier rhinoskin polyester/ 600 denier polyester, and features a double-lined entry pack, internal padded laptop sleeve, integrated shoulder harness with neoprene grab handle, fleece-lined top drop-in audio pocket with headphone exit port, side mesh water bottle pockets, dual-side compression straps, and a laptop sleeve that fits most 15' laptops. It has a capacity of 2,050 cu.in./33.6L and a weight of 2.0 lbs./0.9kg. This backpack is not intended primarily for use by children 12 and under and can be customized with embroidery.