Amazing build quality and can take abuse! They fit very snug to the head but not uncomfortable.
Quick review: their sturdy plastic. Feels like glass, well constructed, came 2 days before expected delivery. I got the red ones and their very nice. Blue tint from your perspective, goldish/red from viewers
I get people asking me each week were I get these, men and women alike, gave a couple out as unexpected gifts to family and a friend, they love them,very good quality, I have had no problems with them, their cool.