Good in terms of performance/quality. I am a runner and I run about 40km per week.
One major downside is that they do not withstand many washes. After a few times, the material starts to fade and they easily tear when you try to put them on. Try one or two pairs, but I'm not sure if they are worth their money.

The material easily wears out, especially where the sock knots, it is not as high quality as I expected for this purchase price, tight elastic where it ties around the foot a little more than necessary, warm, does not properly ventilate the foot.

Perfect socks... they are worth the money you spend. In combination with a good pair of athletic shoes, your feet won't get tired while running in the mountains. I highly recommend them.

I have had them for 2 years and I have worn them out during workouts, running, and cycling. After two years, they have started showing signs of wear and tear. They are not as compressive as the older ones. I highly recommend them.