Made from high quality 1000 Denier Condura Plus material and featuring an expanding section for added storage. Expands from 1.6 litres to 2 litres quickly and simply to provide plenty of storage for those ride essentials. Unique, positive locking 2-piece rail fixer securely attaches bag to the saddle rails and allows you to remove it in seconds. The bag measures 220mm in length, 120mm in width and 120mm in height and is finished off with a 3M Scotchlite reflective strip on the rear for added safety, there is also a webbed loop for an LED light. The Aero Wedge clip also features a built-in pump holder for Topeak mini pumps.