Material: 100% polyester with polyurethane coating Lining: 100% polyester Waterproof rating: W3 – Waterproof protection from light rain Water column pressure: 8000mm Measurements: H48 x W32 x D11cm / H18.8 x W12.6 x D4.3 inches Volume: 13 liters / 4.3 gallons Weight: 835 g / 29.5 oz. Features: Rolltop opening with snap compression, to be securely closed and fastened to protect from rain Signature carabiner closure Single main compartment Front pocket with coated zip Padded air-mesh back panel Side-access laptop pocket fits 16” device Adjustable padded backstraps Webbing carry handle Adjustable chest strap