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 Aqua Sphere Kaiman swim goggle changed the definition of comfort for swim goggles by introducing its proprietary Softeril material and easy-adjust side buckles, ensuring a perfect fit.