Ive been a life long Costa guy, but in January got a free pair of Maui Jim "world cups". I have a huge head and the Maui's are the most comfortable glasses I have ever worn. glass seems super clear (grey lenses). However, I am a huge fan of the Costa warranty and customer service. Also, I will say that the costa 580G lenses are the toughest most scratch resistant lenses I have ever dealt with and the frames are pretty tough. Only time will tell if the Maui's can hold up to the daily wear over time. If so, I am a big fan