Using the Crossframe Pro Exploration Helmet is easy. First, put the helmet on your head and use the BOA® Fit System to adjust it until it fits snugly. You can fine - tune the fit at any time during your trail ride. The FIDLOCK SNAP magnetic buckle makes it simple to fasten and unfasten, even if you're wearing gloves. When you're not using your sunglasses, store them in the integrated holder. As for maintenance, remove the Ionic+® liner and wash it regularly to keep it clean and odor - free. Make sure to keep the helmet in a cool, dry place when not in use. If the helmet has been in a significant impact, it's best to replace it as the protection might be compromised.