Lightweight waterproof frame bag for true globetrotters made from durable material with reflective elements, material loops, and a large zipper access to the spacious main compartment. The four double Velcro straps for secure attachment can be adjusted to fit various frame sizes and tube diameters, and are also suitable for carbon bicycles. Note: Dirt entering under the Velcro can cause scratches on the frame. Please protect your frame accordingly before attaching your bike bag.