The Antic Junior helmet by Smith is a one-size-fits all adjustable youth helmet that was made to be extremely warm and comfortable. There are only two vents on this helmet, on the back of the neck, and the helmet is lined with furry Tricot lining for warmth and comfort. Besides being the warmest youth helmet, you"re also getting an injected molded EPS foam helmet, which is the highest quality and lightest weight foam style in ski and snowboard helmets.