Zoggs newest Reactor Lenses might just be the perfect combination for swimming. The lenses start with our popular copper lens color, which works great for both Indoor swimming and sunny skies, and transition into smoke lenses for those extremely bright days. The Reactor Lenses take the guesswork out of which lens color to use. The 180 degree vision is perfect for open water swimming and Fogbuster Anti-Fog keeps the lenses clear. The 4 Flexpoint Technology Frame flexes in 4 key areas to easily seal to your face. Fitting is as simple as pulling the two straps to tighten and lifting the lever to loosen the fit.