I usually feel it. Good socks feel soft and elastic, and the texture is regular and delicate after stretching by hand. Poor quality socks feel inelastic after being stretched by hand, especially poor quality black stockings. The effect after wearing it is ugly, and it seems that the material is more than one piece and less than one piece, which is uneven. I don't know much about it either. I just love to buy pantyhose and so on. Good and bad feelings are very different. Some base stockings with soles are put out very short. Generally, those who sell socks say that they look absolutely good, but personally, they are easy to break. Always know that socks are not expensive, and you can buy them with confidence. Every time I buy socks, the boss will carefully check whether the socks are in good condition or not. These are all things I should pay attention to when buying socks, but I don't quite understand them.