Fabricated of durable canvas-like 300 denier polyester Full grain leather on all handles Four Wheels... Zero Effort Four multi-directional spinner wheels allow 360 degree upright rolling in any direction Large front pocket Expandability feature for additional packing space Oversized zipper pulls TSA lock A general term for hide or skin with its original fibrous structure more or less intact, tanned or treated so as not to decompose Leather is also made from hide or skin that has been split into layers or segments before or after tanning