Perfect for a day on the trail, camping, or traveling this 45L pack features multiple storage pockets, comfort back panel, a hydration storage sleeve, 360deg reflectivity, and an adjustable hip belt with storage pockets; making this bag ideal to adapt to any adventure! Fit & Design: Water Repellant coating on exterior fabric Multiple exterior pockets: Front Stuff Pocket, Top Zip Pocket with key leash and 2 additional exterior zippered pockets 2 exterior Water Bottle pockets: stretch mesh, perfectly sized for most water bottles and up to a 32 oz. Hydro Flask Wrap Around Zip Opening on Main Compartment: means easier lay-flat packing and access to main compartment Internal hydration storage sleeve with Velcro hangar and hose pass-thru port (hydration bladder and hose not included) An EVA molded and Airmesh back panel provide enhanced ergonomic comfort and breathability Adjustable sternum strap and padded Hip Belt with storage pockets Other exterior features include, Trekking pole storage, side compression straps, and 2 front grab handles Additional Details: Overall Dimensions: 23" x 12.75" x 10.5" Weight: 2.76 lbs Volume: 45L