Blackburn's Outpost Seat Pack is a great alternative to panniers or a backpack. Ideal for overnight trips, it also works well for commuting or long day trips.
• Extra large capacity seat pack
• Removable and weather resistant stuff bag
• Adjusts easily to larger or smaller volume cargo
• Mounts quickly on almost any bike
• Also works with many standard dry bags
• 70D Nylon, 4mm Ripstop with water resistant treatment and backing