Rolltop Rucksack is a city staple, perfect for commutes on bike or foot. The look is characterized by a tactile strap, signature carabiner and rolltop opening. The waterproof bag also features a side-access laptop pocket, front zip pocket and padded back panel. Cycle-ready features include a front D-ringideal for holding bike locksand a buckle fastened chest strap for a secure ride-proof fit.Rolltop Rucksack is cut in Rainssignature waterproof PU fabric, engineered for carrying strength, durability, and a smooth feel.Details: Material: 100% polyester with polyurethane coating Lining: 100% polyester 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 Rolltop opening with snap compression Signature carabiner closure Single main compartment Front pocket with coated zip Padded air-mesh back panel Side-access laptop pocket fits 16device Adjustable padded backstraps Webbing carry handle Adjustable chest strap