Material PU leather Open cover zipper with or without liner Package internal structure ID bag, mobile phone bag, zipper pocket, computer bag Function Waterproof, breathable, shockproof Applicable gender Male Applicable product type Notebook Bag size Large Whether with lock No Model Large Size Processing Method Embossing Style backpack/backpack pattern skull style style college style Hardness, shape of luggage, vertical square shape, lifting parts, telescopic handle Outer bag type, inner patch pocket, lining texture, nylon, shoulder strap number, double root With or without rain cover None Accessories type Backpack shoulder pads Suitable for gift occasions Color black size 15 inch