Special features： [Lotus leaf surface design] This design principle resembles the surface o lotus leaf, which makes rain less likely to penetrate, keeps the helmet dry and ensures a comfortable fit. [High-brighess reflective shields] There are high-brighess reflective on both sides of the helmet cover and on the front of the helmet cover, which reflect the surrounding light when riding at night and increase the rider's visibility, enhancing safety. [Compact and portable] This headgear is foldable and can be folded to a compact size, making it easy to transport and store. [Special elasticated edge design] Our helmet rain cover is designed with elasticated edges, it works better than other cords, one size fits most riding helmets. Meanwhile, the rain cover is designed with the fit of the helmet in mind to ensure that it does not block the rider's view while riding to ensure a safe and comfortable ride. [Multifunctional] The waterproof helmet cover is especially suitable for temperature differences and hot light conditions, it can protect the helmet from rain, dust or sunshine, and is easier to clean than the helmet. [Perfect for] Bicycle helmet, road bike helmet, can also be used as an outdoor shower cap. Description： Brand: ROCKBROS Product type: Helmet cover Material: Nylon Colour: Green Processing: Press bonding Applicable objects: Mountain bike helmets, road bike helmets, etc. Weight: Approx. 41g Circumference of the flat rain cover: Approx. 56cm