I have an older pair of Smith I used to like, but they're glass lenses and heavy to wear for long days. Also have some newer Action Optics that are optically great, but are still relatively heavy and let light and glare in around the sides. Got my first pair of Maui Jims 4 years ago. They fit closer, so little to no glare gets in around the edges. And they are hands down the lightest most comfortable glasses I've every worn. I'm on pair number two since pair number one took up residence this winter under a large boulder now known as Maui Jim Rock on the Bogachiel River (don't ask). I wore pair number two all day every day for eight days in blinding sunlight in southern Utah last week, and they are so comfortable that I often forget I have them on. Pricey, but I'm sold on them.