Amazon.com: RAINS Backpack Mini - Black Waterproof Backpack 。NEW! Rains Black Slim Line Adjustable Backpack. New With Tags. Description − The Backpack silhouette is characterized by its prominent flap and central strap with carabiner closure. This clean and ever contemporary waterproof rucksack features an internal laptop pocket, a spacious main compartment, and a concealed external phone pocket on the back panel. Backpack is cut in Rains’ signature waterproof PU fabric, engineered for carrying strength, durability, and a smooth feel. Waterproof Performance W3 Water Performance Level Details − Material: 100% polyester with polyurethane coating Lining: 100% polyester Waterproof rating: W3 – Waterproof protection from light rain Measurements: H48 x W30 x D12cm / H18.9 x W11.8 x D4.7 inches Volume: 13 liters / 3.5 gallons Weight: 987 g / 34.9 oz. Features: Signature carabiner closure Flap with magnet snap fastenings Single main compartment External back zip pocket Internal zip pocket Flat laptop pocket fits 15” device with sleeve Adjustable backstraps