Using the Met Vinci MIPS helmet is easy. First, adjust the Safe - T DUO Fit System to get a comfortable and secure fit. You can make vertical adjustments, and if you have a ponytail, it can fit nicely. Just put the helmet on your head and tighten or loosen it as needed. When it comes to safety, always wear the helmet properly. Don't modify it in any way as it might affect its performance. For maintenance, the comfort pads are hand - washable. Take them out and gently clean 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. Check it regularly for any signs of damage, like cracks or dents. If you notice any issues, it's time to replace the helmet.