While they are excellent in fit and comfort (and at an ideal price), after about 50 km of running, both pairs I had purchased have torn at the front (at the heavily advertised seams). I don't know if 25 km is considered the upper limit for socks, but personally, it seemed very short to me.

For so long, I've been running with Nike's plain socks... I don't know if socks from another brand or more expensive ones have a better feel, but I was impressed that they added an extra to the shoe's cushioning and I never felt my foot sweating with 80% external humidity.
Amazing sock! Bravo to xcode for offering such a high-quality product at such a price.
Now, as for the durability... we'll see!

They are very soft and comfortable to walk in, but during running the foot sweats a little more. I also put them in the dryer without any issues after several washes.

Very satisfied overall with these simple athletic socks. It loses one star because after two uses they have already started to wear out a little and I don't know how long they will last