These glasses are so light that you don't realise that you are wearing them while you are playing squash. They are close fitting, very important, and have a wonderful strap on the back to ensure that they stay on your head while you are not wearing them, and while you are - to ensure that they do not slip off.
As you are playing, and sweating - the glasses have not been effected. They seem not to fog up, and I never get a glare in the lens. They have not adversely affected my game.
They come with a great soft case, which keeps them in great shape while you are not playing - although a hard case is necessary if you are going to keep them in a gym bag as opposed to a locker.
They are made of a great plastic, that is strong but pliable, and I imagine that these would be difficult to break.
There is no frame on the bottom to ensure comfort, and that you have a good view of the ball, and the court. They are as stylish as they can be with two tone black and grey, and are a great price too!