Swimming creates an obvious necessity for goggles, and swimming outdoors obviously necessitates UV protection. That's why TYR created the Nest Pro Mirrored Goggles. And even better, the Nano version, presented here, features a compact design that accommodates smaller faces. So, you gain the UV protection of a mirrored lens, while also maintaining the sleek, low-profile, and hydrodynamic profile that the Nest Pro goggles are known for. These goggles provide a wider periphery than most TYR goggles, increasing your field of vision. Appropriately, TYR also gave the lenses an embedded anti-fog treatment, preventing any possible loss of vision. For adjustment, the Nest Pro features a varied tensile strength (think varying elasticity) head strap. The TYR Nest Pro Nano Mirrored Goggles are available in one size and in the lens colors Gold Mirror, Titanium Metallic, and White Metallic.