The Topeak BackLoader X 15L Bike Bag is the ultimate high-capacity saddle bag for bikepackers and adventure cyclists. Designed to eliminate the need for a rear rack, it offers 15 liters of storage space in a streamlined, waterproof design. Built with durable, anti-slip, and scratch-resistant materials including polyethylene, PU leather, and nylon, it attaches securely to seatpost and saddle rails via heavy-duty buckles and hook-and-loop straps. The removable waterproof inner bag with a 10,000 mm rating and an air release purge valve ensures your gear stays dry and compact. Holds up to 5 kg (11 lb).Expansive 15L Storage - Ideal for long-distance touring or overnight bikepacking trips, offering ample space for clothing, food, and essential gear.Advanced Waterproof Protection - Includes a removable 10,000 mm-rated waterproof inner bag with air release purge valve for compact, dry packing.Durable Multi-Material Build - Constructed from reinforced polyethylene, anti-slip PU leather, and water-repellent nylon for rugged, lasting performance.Secure & Stable Mounting - Hook-and-loop straps and buckle fasteners tightly attach the bag to seatpost and saddle rails for wobble-free riding.Lightweight Yet Strong - Weighs only 525 g (18.5 oz) with a 5 kg (11 lb) load limit; measures 51 x 24 x 22 cm (20.1" x 9.4" x 8.7") for balanced handling.Manufacturer Sku: TBP-BLX3BTodson Sku: 63005015