# Black and White Cycle Cap Brand new, unworn. Based on my experience measuring numerous face masks (photo 9), I consider 25cm to be the standard size for an average adult male. (※This is not absolute as the shape varies depending on the product.) This product is 25cm, so it's a standard size for an adult male. This is a cycle balaclava to protect you from the cold wind. It's for winter use and has a fleece lining. There are hollows in the cheek area to make it easier to lower the mouth part. Shipping method: "Yu-Packet Post" Gender...Unisex Genre...Road bike