Material: 100% polyester with polyurethane coating Lining: 100% polyester Waterproof rating: W3 – Waterproof protection from light rain Water column pressure: 8000mm Measurements: H18 x W25 x D10cm / H7.1 x W9.8 x D3.9 inches Volume: 5 liters / 1.2 gallons Weight: 470 g / 16.6 oz. Features: Coated tonal zip closures Single main compartment Two front zip pockets Back zip pocket Two internal easy-access pockets Detachable adjustable webbing shoulder strap