Instruct: Classify Amazon reviews into positive or negative sentiment
Query: not too happy

I purchased two pair of these glasses back in January. I travel about 80% of the time so they have not been used too much. Yesterday I went to play a game of racquetball and the glasses fell apart on me. I have no idea why, took them out of locker and a split from the top of the nosepiece straight up to the frame. Not fixable. I looked at the second pair I purchased at the same time, and the same thing is happening to that item too.I have probably worn these less than 90 minutes each, so certainly not worth the money.