The Topeak Sidekick Wedge Pack Saddle Bag is a new innovation in wedge pack construction, combining molded side panels with flexible 600 denier fabric to form a semi rigid, weather resistant saddle bag. A large, side-opening panel provides easy access to all your under saddle gear. Internal mesh pockets keep keys and small tools in place while riding. QuickClick® compatible for fast, easy transfer between bikes.Topeak Sidekick Wedge Pack Saddle Bag FeaturesAdded Features: 3M™ reflective strip, Safety light clip (3M™ is a registered trademark of 3M Company).Bag Attachment: QuickClick® (F25)Insulation: Rigid EVA foamMaterial: 600 denierSeatpost Diameter: Fits 25.4 - 34.9 mm (Medium)Topeak Sidekick Wedge Pack Saddle Bag Capacity0 ... More info