Travel computer backpack men's bag $ 45.70 Internal structure of bag: ID bag, mobile phone bag, sandwich zipper bag, zipper pocket, computer pocket Opening method: zipper Applicable gender: neutral/male and female Material: Oxford cloth Function: waterproof, breathable, wear-resistant, load-reducing, shock-resistant Applicable gift-giving occasions: anniversary celebration Lining texture: polyester Strap root number: double root Bag shapes: square vertical section