Bag universal motion back "Aqua" Oxford, waterproof to protect against weathering, with front pocket, with hooks for fixing the bike, Velcro straps, adjustment strap and carrying strap. Made of TPU (Thermoplastic polyurethane) has waterproof zippers and taped seams for maximum sealing against water infiltration. Available in capacities from 30 liters (medium) and 50 liters (large).