Betta is a sleek sunglass style with temple side vents that utilizes Floating Air-Frame™ technology to stay afloat in the water. Hypoallergenic nose pads and temple pads provide added comfort and grip. Diamond Hard® polarized lenses eliminate reflected glare and block 100% of UVA/B/C rays. The lenses are also shatter-resistant with a scratch-resistant coating. Lifetime Limited Warranty against defects in material and workmanship.