Jobst Activa Men's Knee High 15-20 mmHg

What happened to the quality of Jobst Activa sox? The new ones seem to contain a different fiber that is not as elastic, and sags after the first several wearings.

These compression socks are very thin, so I do not get hot wearing them during the summer. The compression keeps my lower legs from swelling up. Without them, blood pools in my lower legs, which causes the swelling. So they definitely do the job for me.