Unencumbered by size, our 11.81" x 5.12" x 18.11" backpack is large enough for any destination! Spun polyester provides lightweight strength and durability, while the 1.3 lb bag is waterproof and comes with adjustable shoulder straps for true freedom to explore. Carry it near or far- this backpack can take it and so will you! 100% polyester makes this the best and strongest choice. So, have you got room for all that? With our roomy and reliable backpack, absolutely!