• The soft padded back and shoulder straps are breathable and comfortable
• Made of quality Oxford cloth material, waterproof and wear resistant
• Designs with charging input and USB output port, convenient for charging your device
• Large capacity, multi pockets design, it can store a 17" laptop
• The band at the back make it can be put on the trolley case easily
• Capacity expansion design, meet more use demands

Specification:

• Size: 46cm x 30cm x 16cm(26cm after expansion)
• Applicable gender: men
• Applicable scene: business trip, travel
• Material: Oxford cloth
• Lining material: polyester