Granite Gear Campus Sawtooth Backpack Fabric Repel weave fabric with taurpalite bottom for maximum protection against elements, ergonomic maxload multi-compartment design, barrier zipper tricot lined pocket for valuables. . Breathable load absorbing shoulder harness, load stabilizing sternum strap, hide-away load stabilizing waist belt, ergonomic raised foam back panel with lumbar support Adjustable compression straps, bottom stash straps, dual stretch mesh hydration pockets. Gear tech computer sleeve fits most 17" laptops, multi pocket organizer. Repelaweave Fabric with Taurpalite Bottom for Maximum Protection Against Elements Ergonomic MaxLoad Multi-Compartment Design Barrier Zipper Tricot Lined Pocket for Valuables Breathable Load Absorbing Shoulder Harness Load Stabilizing Sternum Strap Hide-Away Load Bearing Waist Belt Ergonomic Raised Foam Back Panel with Lumbar Support Adjustable Compression Straps Dedicated Gear Tech Computer Pocket fits most 17 Laptops Dual Stretch Mesh Hydration Pockets Multi Pocket Organizer 19.75x12.75x8.25 1950 Cubic Inches | 32 Liters