I have been hunting for perfect goggles for years; can''t find any that meet all my criteria... until now. These goggles don''t leak, even after Lap 20 when most others seem to loosen up, and they don''t fog (even a touch of fog drives me nuts). Polarizing is great too. I swim mid-afternoon and our pool catches the sun lengthwise, so polarizing helps a bunch. All in all, not a thing I would change.