ANTI-FOG & UV PROTECTION - Plexisol lenses made in Italy with technology gives the perfect sense of underwater so you can focus on swimming fast DEVELOPED WITH THE BEST - Michael Phelps, the most decorated Olympian of all time with a total of 28 medals, and legendary swim coach Bob Bowman assisted in developing this revolutionary swim goggle that gives swimmers a competitive edge with light weight technology RACE FIT STRAP SYSTEM - Patented frame technology and one-time, hydrodynamic low-profile strap adjustment system offers a high-quality low profile fit. Set it and forget it with this hassle-free silicone strap experience INTERCHANGEABLE NOSE BRIDGE - Ergonomic, easy to replace, and customizable are the core components of the four interchangeable nose bridges to give you the most comfortable fit CURVED LENS & EXO-CORE 2.0 TECHNOLOGY - The expanded field of and more advanced streamlined shape allows the swimmer to sight walls and the competition without altering head position