Waterproof Laptop Backpack 15.6。Ultra-large travel backpack built for 5–7 day trips, with a 180° opening that rivals an 18” suitcase. Smart organization and waterproof protection keep everything in place. Condition: Brand new 1. Measurements 17.72 x 12.60 x 7.09 inches 2. Materials / Fabric Polyester, high-density nylon, water-proof 3. Features ? Expansive Travel Capacity – 180° opening like a suitcase, perfect for short journeys ? Intelligent Organization – 8 multi-functional compartments with wet/dry separation and shoe storage ? Secure Tech Protection – Fits 15.6” laptops with a built-in USB charging port ? Comfortable Carrying – 0.8 in thickened breathable sponge back pad reduces strain ? Seamless Travel Convenience – Elastic strap attaches to any luggage trolley fast shipping, smoke-free home, bundle & save QjBHQldIUDNUTQ==