About this item Secure & Practical Design:Bike covers for outside with lock hole design at the front wheels area allows using a bike lock with the cover on against bike theft. Bottom double-stitched elastic hem and special designed buckle for a snug fit keep it secure on those windy days. Durable & Waterproof: Outdoor bike cover waterproof is made of waterproof 210T Nylon material,with PU and UV coating protect bicyles from dust, dirt, sun, rain, UV and pollutants. Keep your bike like new for a long time. Easy to Use: Bicycle tarp with the elastic design, installation couldnt be easier. Just toss it on, buckle it up, and youre set. Dimension of 79 x 43. 3 x 33 inches, well-suited for most bike up to 29" wheel size. Ideal for mountain bikes, road bike, beach cruisers and mopeds. (Please measure your bike before ordering.) Portable & Concenient: Bicycle cover waterproof storage bag can be folded down to a compact size and easy to fix onto bike cross-bar with hook and loop or placed inside the basket neatly, convenient to carry while riding.