Dangerous said..
The big selling point of polarised lenses is they filter any light reflecting off a surface, including reflections off the surface of the water but it is this reflection that allows you to see the surface you're kiting on. Without it, you're just looking at a body of transparent liquid so your perception of the waves and chop is compromised. They're great for almost everyone as they reduce glare so they feel better to the eye but not for kiteboarders. I've queried Seaspecks about this and they sent me non-polarised lenses which made a world of difference but there's no mention of it on their website.
I had my first session today on a non-polarized pair of glasses. Not Seaspec, just a pair of good quality safety glasses with 25% grey tinting.
It was a world difference. It was great to judge the dept above the reef and ride through the shallow without much worry. It certainly lets through the sun's reflection from the water way more than a polarized, but it wasn't disturbing, especially because the glasses filtered all UV. The quality of the glasses were superior, water repellent and permanent non-fog. I hope they will last.
This is certainly the go...