1Reflective Design: Reflective fabric all over the head, with safety conscious reflective strips throughout. Provide you with more security, especially at night. 2Rip-resistant and Breathable: The cycling helmets cover is made of high-quality and rip-resistant fabric which is more breathable and durable. It can keep out rain and cold air from your head. 3Protective and Weatherproof: The waterproof cover is especially suitable for the environment with large temperature difference and hot lamps, it can well protect the helmets from wind, rain, dust or wind. 4Elastic Design: elastic adjustment buckle design, suitable for most bicycle riding helmets (not suitable for daily household helmets with sunscreen and windshield, not suitable for motorcycle full helmets) 5Multifunctional Cover: Whether you're a city biker or looking for added protection when riding your road, CX, gravel, or mountain bike, the waterproof helmets cover works well.Feature:1. Reflective fabric all over the head to ensure your safety at night.2. The fabric is rip-resistant, breathable and durable.3. It can well protect the helmets from wind, rain, dust or wind.4. Suitable for most bicycle riding helmets.5. Perfect for cycling, road biking, and outdoor sports.Specification:Name: bicycle helmets coverSize: opening perimeter 85cm2cmFabric: soft pongee fabric surface + reflective materialPacking List:helmets cover*1Notes:1. Due to the different monitor and light effects, the actual color of the item might be slightly different from the color which is showed in the pictures.2. Please forgive a slight measuring deviation due to manual measurement.