NylonNylon liningZipper closureHand Wash Only【High quality】It's made of high quality water-resistant and rip-resistant nylon.【Unbalance backpack wearing styles】It has great flexibility. You can use it both as chest pack and shoulder bag. Also it can be worn in the front or back of body.【Multiple storage purpose sling bag】Large main compartment with inner open cellphone pouch is perfect for iPad Mini with cover, Kindle, Small notebooks, Large cellphone. 4 front zippered pockets are great for various of small items.【Durable】Good construction and strong and sturdy bag. Shoulder strap is adjustable to meet different requirements for both men and women. Also for plus size people.【Versatile】It's perfect for walking/traveling/biking/hiking/museums/theme parks and everyday using. Also it's a great gift for adult.【Notice】THIS ITEM IS NOT INTENDED FOR USE BY CHILDREN 12 AND UNDER. About This Small Sling Backpack: This sling backpack is being manufactured by high quality water resistant nylon.