Aerodynamic seat bag holds tubes, tools and other repair items. Mounts with our innovative Quick Release Buckle system to fit all railed saddles. Four sizes offered to exactly fit rider’s needs. BAG ATTACHMENT: Nylon straps / Buckle MATERIAL: 1200 denier polyester SEATPOST DIAMETER: Fits 27.2 - 34.9 mm ADDED FEATURES" 3M™ reflective strip, Safety light clip. EXPANDING: Medium, large sizes CAPACITY: 0.98 - 1.31 L (Medium) SIZE: 7.9” x 4.7” x 4.3” (Medium) WEIGHT: 4.58 oz (Medium)
