Topeak Backloader X

A large capacity seat bag specifically designed for bikepackers wanting a streamlined way to carry gear without the need for a rear rack. The reinforced, anti-slip/scratch fabric protects the saddle while the advanced mounting system enables convenient and secure mounting to seatpost and saddle rails. Easy access waterproof carry bag and built-in air release purge valve keeps bag compact and dry while you’re on your next adventure.Key Features:  Material: Polyethylene / Anti-slip PU leather / Nylon / Engineering grade polymer Lightweight, durable, water repellent and stain resistantBag attachment: Holster with hook and loop fastener and buckle fastener Waterproof rating: 10,000 mm (waterproof inner bag) Max load capacity: 5 kg / 11 lb Added features: Waterproof carry bag, Air release purge valve, Attachable rear light strap, Optional backloader Wishbone Size: 51 x 24 x 22 cm / 20.1” x 9.4” x 8.7” (15 L), 46 x 24 x 22 cm / 18.1” x 9.4” x 8.7” (10 L)  Weight: 525 g / 18.52 oz (15 L), 508 g / 17.92 oz (10 L)