This 0.8L Restrap Bolt-On Top Tube Bag has a unique design that means you can secure it to top tube bolt bosses, with a plastic base and reinforced holes, so there's no need for straps around the top tube. Secured at the front by a Velcro strap, it's designed to fit all heights of headset. The bag is constructed from 1000D Cordura which is completely waterproof to protect the contents and there's a YKK zip allowing easy access to the contents mid-ride. With a 0.8-litre capacity, there's space for nutrition, packable layers and any other small items you may need close to hand.