The workmanship is very good and several washes it has survived intact.
The size I immediately a number chosen to be greater, because I already knew this problem from other tights this manufacturer. But in the selected size they fit perfectly and also have enough supporting effect.
You can be comfortable to wear and even if you have time to go into a crouch sliding the rear part of the collar not geleich south (but probably depends also on the selected size).
The tights are made of 84% polyester and 16% spandex
They were made in China.