Designed to make full use of the space under the saddle, large capacity saddle pack, waterproof inner bag with a roll-down opening, and also comes with two burly seatpost straps. Constructed from high quality, water resistance and skidproof materials, and optimized for durability.Key Features:Large capacity saddle pack,Waterproof inner bag with a roll-down opening,Comes with two burly seatpost straps,Constructed from high quality, water resistance and skidproof materials,Optimized for durability,Velcro Fastening ,Material 600D Polyester + 1682D Nylon + 210 Nylon ,Reflective Stripe 3M™ ,Complete with light clip,40cm x 19xm x 15cm ,8.8L capacity ,Weight: 485g.