Founded in 1998, Aqua Sphere has become a new star in the swimming equipment industry in a short period of time with its unique and creative product design, and Phelps' comeback is a testament to the strength of its brand by giving up the Speedo that he had been sponsoring him in favor of Aqua Sphere.
 
From the very beginning of the brand, Aqua Sphere has been committed to developing more comfortable swimming goggles, with large frames, large lenses, and a full field of view being the hallmarks of Aqua Sphere goggles. Aqua Sphere has a number of patented technologies for the production of swimming goggles, including Plexisol curved lenses that provide a 180-degree distortion-free field of view and Softeril gaskets that are sealed and skin-friendly. In addition, Aqua Sphere's goggles are produced in Italy.
 
The Kayenne series of adult and juvenile swimming goggles using Plexisol lenses have been rated as the best swimming goggles by The Wire Cutter, and the quick-adjust side buckle design can be easily adjusted even when wearing swimming goggles, the basic model of the Kayenne series is priced at about 250 yuan, and the price of swimming goggles equipped with special lenses such as coating and polarized lenses is slightly higher, more than 300 yuan. Coated lenses are mainly used to block glare rays on water, anti-glare, and metallic coating looks cooler; Polarized lenses not only block out bright light, but also filter out reflections from the water, making them more practical for swimmers who often swim in open water.
 
Following the best-selling Kaiman series, Aqua Sphere has launched the Kaiman EXO, a series of frames with EXO Core technology and made of two composite materials to better protect the lenses and extend their life compared to Kaiman's frames. The Kaiman EXO series is slightly cheaper than the Kayenne series, with a price of about 200 yuan.
 
The Aqua Sphere goggles all have an integrated frame and the nose bridge cannot be changed or adjusted, but in addition to the fixed size, each series is also available in Small Fit and Women's models for small faces. Due to the fixed size, it is recommended that consumers try on before purchasing to determine the fit of the goggles.