Using the MET Rivale MIPS helmet is easy. First, adjust the fit system at the back of the helmet to make it snug but not too tight. Put it on your head and make sure the straps are adjusted so that they form a V under your ears. When riding, this helmet will keep you safe and comfortable. As for maintenance, you can clean it with a mild soap and water. Don't use harsh chemicals as they might damage the helmet. Also, store it in a cool, dry place. If the helmet has been in a crash, replace it immediately as its protective capabilities may be compromised.