Product Parameters: Gender: Female, Male Item Type: Backpacks Occasion:Daily,Travel Main Material: Nylon Lining Material: Polyester Closure Type: Zipper Strap: Adjustable Pattern Type: Solid S Size: 27cm(L)*13cm(W)*37cm(H) / 10.63'' x 5.12'' x14.57'' inches M Size: 31cm(L)*14cm(W)*42cm(H) / 12.20'' x 5.51'' x16.54'' inches L Size: 33cm(L)*16cm(W)*47cm(H) / 12.99'' x 6.30'' x18.50'' inches Capacity: 20 Litre(S Size), 20-35 Litre(M Size), 36-55 Litre(L Size) External:3 Main Large Zipper Pocket, 2 *Side Slot Pockets, 2 *Front Zipper Pockets, Back Zipper Pocket Interior: Interior Compartment, Computer Interlayer, Interior Zipper Pocket, Interior Slot Pocket, Cell Phone Pocket Bag Weight: S Size:1.06 pound(lb); M Size:1.32 pound(lb); L Size:1.48 pound(lb) Note: -Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package: 1 * Women Backpack (without gift box)