Material: .45mm Industrial-class, heavy-duty vinyl, with PVC lining and reinforced seams Approximate Size: 19Tall(including wheel) x 12Wide x 7.5Deep Features: Padded back sleeve that hides the straps while you roll the bag and covers the wheels when you are carrying it Sturdy base to hold the bag upright Rugged wheel system Roomy double-zippered main compartment The back straps are heavily padded and their S-shape makes it more comfortable to carry than your average bag. 2 zippered front pockets provide additional storage headphone outlet in front pocket is quite handy for iPod lovers Side zippered cellphone pocket Side mesh bottle holder 17" retractable pull-handle