GREAT sport sunglasses! I use them while cycling and running. The optics are stellar, no distortion at all. I debated getting the Max vs standard Parallel model as stylistically I tend to like smaller sunglasses, but the Max is definitely the way to go, covers about 90+% of the visual field, gives excellent wind/bug protection on rides, and certainly don't look large. They are very secure in place without feeling tight, no bounce at all while running. The Red Sol X lenses are fabulous in bright sun, though they don't cut glare as well as a polarized lens. The Ignitor lenses work well in overcast settings and help with contrast a bit. The clear lenses work well for night rides. Very easy to swap lenses once you've done it a few times. The case they come in is a very nice zip hardcase with individual lens pockets to hold all the extra lenses. You get what you pay for with these.