Using the Lazer Lupo Kineticore MTB helmet is a breeze. First, put the helmet on your head and adjust the Lazer TurnSys system by simply turning the dial until you get a snug and comfortable fit. Make sure the helmet sits level on your head and covers the sides well for protection. If you're wearing sunglasses, rest the arms in the recesses of the helmet to avoid pressure. For added safety in low - light conditions, attach the Universal Lazer LED at the rear of the helmet using the Direct Mount. When it's cold outside, you can easily attach the Winter Kit for extra warmth. As for maintenance, keep the helmet clean by wiping it with a damp cloth. Avoid using harsh chemicals as they may damage the materials. Check the straps regularly for any signs of wear and tear. If you notice any damage to the helmet, such as cracks or loose parts, stop using it immediately and consider getting a new one. This helmet is designed to last, but proper care will ensure it serves you well for many rides to come.