Pixie is an affordable model with excellent performance for our smallest friends. Comfortable fit with 2-layer foam and adjustable strap. Pixie has a single lens with good optical quality. The lens is made of X-PC with anti-fog treatment and has 100% UV protection. Pixie is the right choice with a full-frame for alpine skiing and free-skiing for children - 100 % UV Protection, Single Lens, 2 Layer foam.