SYCNB Lightweight, Heavy Duty, Water Resistant Nylon 。Brand new, never worn, and in flawless condition — this large travel backpack delivers a versatile, durable design perfect for travel, hiking, and outdoor adventures. The construction is strong, waterproof, and incredibly functional. ? Measurements Before expansion: (L*W*H) 32*22*47cm / 12.6\"*8.66\"*18.5\" After expansion: (L*W*H) 32*28*47cm / 12.6\"*11\"*18.5\" Weight: 1.1KG / 2.43 LB, Capacity: 45L ? Materials / Fabric Polyester ⭐️ Features Style: Expandable travel backpack Fit: Adjustable padded shoulder straps for comfort and breathability Fabric: Waterproof durable polyester Capacity expands via hidden main compartment ? Compartments Main pocket x 3, laptop compartment x 2, separate shoe compartment, wet pocket made of high-density waterproof material, anti-theft zipper pocket on back ? Carrying / Wearing Options Hybrid conversion: backpack, duffle bag, shoulder bag, travel bag ?️ Practical Use Work backpack, college backpack, professional laptop backpack, weekend getaway, travel, hiking, outdoor ? Condition: Brand New fast shipping, smoke-free home, bundle & save B0C4PJY1RR