Disappointment! Two of the things which were promised and expected from this goggle are FALSE: 1.) 180 degree vision where you can see the lane rope and next lanes too... in reality the lenses are almost flat and you cannot see even the closest rope right next to you when swimming in backstroke! What you see on teh sides are the black frame of teh goggle and even the lens is distroting the picture in the corners unlike my cheap Arena semipro goggles which has better peripherial vision than this Kayenne... 2. Anti-fog: totally useless, false promise as it got foggy just after the first 300m on the very first use... (outdoor in October) but anyway... The only pro: really cool sexy lokking design and more comfortable than most general goggles. I am gonna sell this second hand right away (loss to me) because returning it from Hungary to Slovakia is too expensive. I would recommend to buy MP Michael Phelps XCEED true 180 degree vision gogles.