The Restrap Race Saddle Bag is designed for ultra-distance riding, audax, and racing. Its holster design securely holds a 7.0L waterproof dry bag with a Fidlock(TM) magnetic buckle that&';s easy to adjust even with gloves on. The hardshell construction, reinforced with Hypalon straps and foam blocks, keeps the bag stable on the seat post while protecting it from scuffs and scratches. Reflective details enhance visibility for night riding. Key Features Waterproof Dry Bag - 7.0L Fidlock(TM) dry bag keeps gear safe and dry in any conditions. Secure Holster System - Hardshell holster with Hypalon straps and foam blocks prevents sway. Visibility & Durability - Reflective details and reinforced construction protect the bag and enhance safety.