600 Denier polyester. Two external zipper end pockets and one full length side pocket envelope: this pocket opening is just under the side panel tape. There is also a concealed zipper pocket inside the right end panel pocket. Heavy duty rubber coated bottom which extends up on all sides. 4 bottom rubber feet for added durability, located at each corner. The top U shaped zipper extends down the full side of the bag foe extra access. All bags have A4 labels.