A one-piece motorcycle suit has no openings and no seams that can leak. In other words, this is the best protection against the rain.
The less experienced user might think that putting yourself into a full length suit is a little bit less easy, but all rain suits have the necessary long zippers: getting in is quick and easy.
Rainwear with a breathable outer fabric prevents you from getting wet as a result of body moisture or sweat from the inside.
Tip from the RAD House
The sizes of rainwear for the motorcycle correspond to the size table of motorcycle jackets; not with the size of your body. If you wear a motorcycle clothing size L, you need a rain suit size L, not a roomier one.