"Our Ascend Priority 40L Expandable Commuter Backpack is perfect for commuters or travelers. Built from eco-friendly 450-denier recycled polyester. Its main compartment expands from 25L to 40L, plus its large clamshell opening makes it easy to load and unload. A collapsible shoe garage is perfect for biking to work, as it's vented and includes tie-down toggles. A pair of padded sleeves accommodate up to an 18"" laptop and 13"" tablet, respectively. A breathable, foam-padded back panel and mesh shoulder straps keep you cool. A 10-pocket tech organizer with keychain clip makes it easy to keep your essentials organized, while a top fleece pocket and 2 fast-access pockets offer convenient storage. A luggage pass-through strap makes this backpack airport friendly, and 3 carry handles offer easy transport. Reflective materials boost visibility in low light, and YKK zippers offer reliable performance. Whether you're commuting to work or traveling to new destinations, the Ascend Priority 40L Expandable Commuter Backpack keeps your essentials close at hand. 450-denier recycled polyester construction Padded back panel and breathable shoulder straps Padded sleeves for a laptop and tablet Expandable design from 25L to 40L Easy-access clamshell opening Collapsible shoe garage 10-pocket tech organizer Luggage pass-through strap Reflective accents add low-light safety 3 carry handles YKK zippersSpecs: 19.5""H x 14""W x 12.5""D Capacity: 2,441 cu. in./40L Weight: 3.8 lbs."