Next to the word 'light' there is a vertical label that says 'winter socks.' No site mentioned this, while 'light' suggests a summer sock, this one is actually for winter.
For a winter sock, it's awesome, very good, doesn't make your foot smell, and keeps you warm without sweat.

The socks are very good in terms of quality. They effectively absorb sweat and are very soft. The only thing that concerns me about their durability is that after just 4 times of wearing them, they have started to form knots as if they are beginning to unravel. I don't know if this is common with woolen socks or if I am washing them incorrectly (synthetics at 40 degrees), but this is my experience.