Using this Met Echo Mips MTB Helmet is easy. First, adjust the Safe - T Mid Fit System to get a comfortable and secure fit on your head. You can also adjust the cam navider according to your preference. If you don't need the visor, just remove it. When it comes to safety, always wear the helmet when you're on the trails. Remember, the MIPS - C2 system is there to protect your brain during impacts. For maintenance, take out the hand - washable comfort pads regularly and wash them with mild soap and water. Let them dry completely before putting them back in the helmet. Keep the helmet in a cool, dry place when not in use, and avoid exposing it to extreme temperatures or harsh chemicals. Check the helmet regularly for any signs of damage, and if you notice any cracks or other issues, it's time to replace it.