The SINNER DUCK MOUNTAIN is really geared towards young children, we would say that it fits those from 4-10 the best. Equipped with a Category 2, double, red lens with special anti-fog coating to stay fog free, while it blocks harmful UV rays. This clever goggles have a good facial coverage which allow a clear view of the terrain and slopes and your kids enjoy their perfect winter vacation.  The anti-fog treatment tends to work well and lasts for a long time. The colour choices are fun for kids.