The Arcore DIOPTON POLARIZED sunglasses are ideal for all your sporting activities. The lightweight frame ensures all day long comfortable wear. High-quality lenses will protect you from harmful UV rays. As the name suggests, the lenses are also polarising, so unpleasant reflections of light that come from different surfaces are a thing of the past. The package includes a removable dioptric insert, which is made of high quality TR90 material. You can wear them without the dioptric insert.