Works well
These work very well for holding my glasses on. I didn't have the back tightened when going outside and a gust of wind blew my glasses right off but these kept them around my neck and off the ground. My glasses are also a bit loose sometimes (one of the ear pieces came off right at the screw - cheap pair of glasses) and these prevent them from falling off. I have shorter hair and tightening them isn't a problem for discomfort as I find them comfortable to wear with or without tightening the straps. The different colors are a nice option not to mention getting three in the pack.
Rating: 5 stars