Using this helmet is easy. Just adjust the lightweight fit system to get a snug and comfortable fit for your young rider's head. When your child is going for a ride, make sure the helmet is properly fastened. Before each use, check the helmet for any visible damage. In case of a crash, replace the helmet immediately, even if there is no obvious damage. To keep the helmet in good condition, when the sweat smell builds up, take out the moisture - wicking liner and wash it. You can wipe the outer shell of the helmet with a damp cloth. Store the helmet in a cool, dry place, away from direct sunlight and extreme temperatures.