Cotopaxi's Allpa 42-liter travel backpack is perfect for days on the trail or at the airport thanks to its durable construction, multiple pockets for all essentials and a convenient pass-through back panel that easily attaches to a rolling suitcase. * Durable nylon construction * Easy-to-clean polyester lining * Large main compartment with clamshell zip closure * Internal pockets * Side mesh water bottle pocket * Two front zip pockets; one compatible with Allpa X hip pack * Three grabs handles for convenience * Fleece-lined inner laptop pocket that fits up to 15" screen * Pass-through roller bag compatible back panel * Four exterior webbing loops for extra gear * Packable shoulder straps and waistbelt * Ergonomic adjustable shoulder straps * Designed to move weight to waistbelt * Made in Philippines * Shell 1: 100% recycled 840D TPU-coated nylon * Shell 2: 100% recycled 840D ballistic ripstop nylon * Lining: 100% recycled ripstop polyester * 42L (2563cu in) * 22 x 14 x 11in (56 x 36 x 27cm) * 3 lb 2 oz (1.41kg)