The DynaWedge by Topeak is a light, water repellent and aerodynamic storage solution. With its moulded construction, it's perfect for carrying tubes, tools and other small items while cycling. The DynaWedge is made from Elastic Polyurethane Fiber and EVA Foam, ensuring durability and weather resistance. It can be easily mounted to saddle rails with adhesive straps and to the seatpost with a rubber strap. Suitable for most types of saddle rails, it fits diameters ranging from 25.4mm to 31.8mm. The DynaWedge is available in three sizes: Micro (14x4.5x10.5cm, 0.35L, 66g), Small (18.5x6x14.5cm, 0.8L, 98g), and Small Waterproof (14x5x10.5cm, 0.35L, 45g). Choose the size that best suits your needs and enjoy a clutter-free ride.