Granite Gear Champ Backpack Fabric Repel weave Fabric with Taurolite Bottom Maximum Load Multi-Compartment Design High Density Foam Shoulder Harness Fully Padded Back Panel Adjustable Compression Straps Lash Straps for Easy Attachment Dual Stretch Mesh Hydration Pockets Gear Tech Computer Sleeve fits most 15 5" Laptops Multi Pocket Organizer, 1775 cubic Inch 18.5"x12.25"x8"