Ortlieb Sport-Roller Classic Pannier - 25L Pair Nothing But The Classics Whether you're commuting to work by bike or you're going for a multi-day tour/backpacking trip, you'll love having a pair of panniers on your bike. Panniers make it easy to carry your gear on your rear rack. The Ortieb Sport-Roller Classic Pannier is made of robust polyester fabric and is designed for lowriders in the front or for the rear rack. The pannier has a QL2. 1 system that makes it easy to quickly mount and take off the bike rack. It features a lower hook rail made of two-component "hard-soft" synthetic that reduces abrasions on the carrier. Features QL2. 1 system for racks up to 16mm, and includes reducers for 8, 10, and 12mm tube diameters Integrated inner pocket and shoulder strap Top QL hooks and lower slider hook adjustable without requiring any tools Dimensions: 11. 8" x 9. 8" x 5. 5"Total volume: 25LWeight: 1590g | Ortlieb | Sport-Roller Classic Pannier - 25L Pair Black | Polyester