NK ELMNTL BKPK - AOP100% POLYESTER Nike Elemental Backpack (21L) Make it easy on yourself while packing up your lunch, gear or clothes for an overnight. From work to play, this bag is built to store what you need. It's got a dual zippered main compartment that gives spacious, secure storage and multiple easy access zippered pockets that offer organization on the front. Stash your water bottle in the side and you're ready to go. Padded shoulder straps and a back panel