Item Type: Backpacks    Model Number: CKXS    Gender: Unisex    Lining Material: Polyester    Closure Type: Zipper    Capacity: About 20 Litre    Rain Cover: No    Carrying System: Physiological Curve Back    Pattern Type: Characters    Interior: Computer Interlayer,Interior Slot Pocket    Style: Preppy Style    Backpacks Type: Softback    Main Material: Oxford    Handle/Strap Type: Soft Handle    Decoration: None    Exterior: None    Technics: 3D printingSize:40cm*30cm*13cm