Packable Backpack, Celaine Ulta Light Hiking, Camping, Gym, Foldable Backpack, Marsh Brown Purchase includes carabiner for attaching items such as keys, ID tags, accessory pouch, compasses, etc... Material: 600D High Density Polyester for daily durable use. Interior water proof PVC lining provides protection from water. Excellent storage: Large Roomy Main Zipper Storage with Outer Mesh Storage and Side Pockets to Store Phone, Water Bottles etc. - Adjustable buckle shoulder strap with comfortable grip Adjustable buckle shoulder strap with comfortable grip Size:(W x H x D) 13 x 16 x 4.5 inch