The original curved lens goggle. Following the successful launch of the Seal swim mask, Aqua Sphere applied its patented curved lens technology to a swim goggle, for the first time bringing 180-degree vision to traditional swim goggles. In addition, the Kaiman changed the definition of comfort for swim goggles by introducing its proprietary Softeril material and easy-adjust side buckles, ensuring a perfect fit. -Easy-adjust buckle system. -Plexisol lens. -100% UVA and UVB protection. -180-degree distortion-free visibility. -Scratch-resistant coating. -Anti-fog coating.