Several things impressed me.
1. When I pull them on, I feel a constant pressure which makes putting them on easy and convenient .
2. Constant pressure means better circulation
3. I don’t think about it but when I take my boots (or shoes) off at night , they slip off without pulling or yanking like cotton or rayon socks do.
4. I could go on but, bottom line, I’ve never had socks feel as good as these do. I’ve bought knee high, crew and ankle. They’re all great.