The Topeak BackLoader 10L (TBP-BL2B) is a high-capacity bikepacking seat bag designed for riders who want to carry gear without the weight and bulk of a rear rack. Built from lightweight, durable polyethylene and nylon materials, this saddle bag is water-repellent, stain-resistant, and engineered for long-distance adventure riding on gravel, road, or trail. Its upgraded saddle mounting system and strong compression straps reduce the “pendulum effect” common with large seat packs, keeping the load stable even on rough terrain. Inside, the included waterproof inner dry bag (10,000mm waterproof rating) protects clothing, tools, and essentials from rain, mud, and road spray, while an air release button makes packing tight and efficient. With a max load of 5 kg (11 lb) and easy hook-and-loop attachment, the BackLoader mounts and removes quickly for travel or commuting. A built-in safety light clip adds visibility for night rides, making this an ideal saddle pack for bikepacking, touring, and endurance adventures.