Granite Gear Cross-Trek Wheeled Carry-On with Removable 28L Pack Fabric Essential 360 protection with impact-absorbing wheels, hypalon corner protection, and aircraft Aluminum pull handle with rubberized grip Trail tested load carrying techology Ventilated, load-absorbing skeletal foam shoulder straps Load stabilizing sternum strap and hip belt Durable water-repellent zippers and extreme water-resistent front pocket zipper Repelaweave &amp; Repelagrid Fabrics For Maximum Protection Against Elements Rugged Wheels With Impact-Absorbing Wheel Housing And Bumper Fortification Hypalon Corner Protection And Kick Plate Durable Aircraft Aluminum Pull Handle With Rubberized Grip Ventilated, Load-Absorbing Skeletal Foam Shoulder Straps Padded Comfort Grab Handles For Easy Lifting Load Stabilizing Sternum Strap Load Stabilizing Hip Belt Durable Water-Repellent Zippers and Extreme Water-Resistent Front Pocket Zipper Barrier Zipper Tricot Lined Pocket to Sheathe your Small Electronics &amp; Accessories Heavy Duty Compression Straps For Zipper And Seam Stress Release Gear-Tec Technology Protection for Supreme Laptop/Tablet Defense Multi Pocket Organizer to Consolidate Your Small Items Size 22x14x13 Volume: 4500 Cubic Inches - 74 Liters Weight 9.7 Lbs Backpack weight alone 2 lbs 3 ounces