ALPINA ARBER VISOR Ski and Snowboard Visor Helmet with Adjustable Mirror Visor

Hard shell technology, made from strong ABS material, is a shell structure that is durable, impact-resistant, and highly safe. The inner shell is made of highly expanded polystyrene resin material, and this granular material absorbs and dampens impacts. The dial on the back of the head allows you to adjust the head circumference to fit your head size. The chin strap can be easily attached and removed with a single push. You can easily adjust the position of the chin strap to suit your preference.