The S1 Lifer Visor Helmet is a very unique skate helmet and bicycle helmet with in mold mounting hardware in order to mount and remove a visor. The S1 Lifer Visor Helmet can be called a roller derby helmet, bike helmet, bmx helmet, longboard helmet, bike helmet with visor, roller skate helmet or scooter helmet because it offers the best protection no matter how you roll. The S1 Lifer Visor Helmet is the safest and best fitting certified skate helmet and bike certified helmet on the market. We batch test every production to make sure the S1 Lifer Visor Helmet meets and/or exceeds current helmet safety standards so when you buy an S1 Lifer Visor you are buying the best derby helmet and bicycle helmet with visor available. Patent # 10,349,698