From LL Bean, details about this pre-owned butterfly backpack: The small but mighty pack - our smallest pack makes an ideal first pack for students just starting out. Same time-tested construction and rugged materials as our L.L.Bean Original Book Pack. It's no secret that elementary-school students love our Original Book Packs, so we created a smaller version for all the little brothers and sisters out there. It's just as tough as the original, but sized to fit younger kids because packing treasures around the backyard can sometimes be just as important as carrying books and homework to school. Construction Main compartment has ample room for a lunch box, a few toys and an extra set of clothes. Front pockets feature a key clip, an organizer panel and a place for small treasures. Water bottle pocket. Comfortable back panel and shoulder straps built to fit smaller backs and arms. Extra-tough zippers for years of use. 3M Scotchlite Reflective Material on front and straps is highly visible to motorists at night. Specs Designed For: Ages 4 and up Capacity: Approx. 1,037 cu. in., 17 L Weight: 13 oz Dimensions: 14.5"H x 11"W x 6"D Fabric & Care Made of weatherproof 100% polyester. Place pack inside mesh laundry bag, then machine wash and line dry.