There are only a handful of companies who focus on baseball sunglasses, and even then it is not really a top priority. Most of the time, you will see the traditional flip sunglasses, in which a player leaves them up until fly ball is hit in their direction, and then they will flip them down. You will see a lot more baseball players these days wearing styles such as Oakley and Bolle, top manufacturers of sunglasses for years in many different fields. They typically provide much better light protection and are bit more stylish.