model：CB-8309（laptop :17.3inch）

size: 33*16+8(expandable）47cm  expandable wide size :22cm  

laptop compartment size:32*43 cm

material :coated pu film+nylon

color：black grey blue  

N.W：1.35KG

carton size ：8PCS   61*37*51cm

1. Minimalist business large‑capacity laptop backpack

2. Water‑repellent fabric

3. 180° opening + combination lock / EVA laptop compartment

4. Dual USB + Type‑C ports

5. Wet‑dry separation pocket + multiple compartments for organized storage

6. Side zippered mesh pocket for umbrella and water bottle

7. Chest strap on shoulder straps to prevent slipping

8. Hidden security pocket, luggage trolley sleeve, built‑in pen slot