Business backpack multi-function anti-theft backpack men's computer backpackBag size Large capacity 20L or less Package internal structure ID bag, mobile phone bag, zipper pocket, computer pocket Open cover zipper Applicable gender Male Material Oxford cloth Whether with lock No No rain cover No function Waterproof, breathable, wear resistant, burden reduction Brand Bo brand Model 30*13*43cm Processing method Soft surface Hardness medium pattern solid color for gift occasions business gift style business Lining texture