How to use: Put on the helmet and use the TurnSys retention system. Just turn the dial to get a perfect fit. You can also adjust the back part of the Rollsys system using the adjustable head basket to your liking. If it's cold, attach the Winter Kit. For better visibility, install the optional LED taillight. Notes: Make sure the helmet fits snugly but not too tight. Check the helmet regularly for any signs of damage. Avoid exposing the helmet to extreme heat or chemicals. Maintenance: Clean the helmet with mild soap and water. Let it air - dry. Don't use abrasive materials that could scratch the surface. Store the helmet in a cool, dry place when not in use.