I bought these socks for use in my Crossfit box; unfortunately they are not ideal for that use.  These socks look cool, and have a nice feel to them, and perhaps they will work well for cycling on cooler days, but they don't quite measure up to Crossfit; I am use to high quality socks, such as MOXY Socks (also available on Amazon).  Unlike the higher quality Crossfit specific socks, these have no compression value, the foot area (toe to high heel) is extra thick and loose fitting on my US size 10 feet, which translates to warm and somewhat sloppy for exercises like box jumps or burpees.  The calf area is also quite loose; sufficient to stay up during jump rope or maybe an adventure race, but too loose to stay in place for rope climbs or repetitive lifts where a bar may rub your shin.  Also, the insides of the socks are lined with very loose loops of red, orange, and yellow thread (see my uploaded picture), which readily catch on toes and even well-trimmed toe nails.  I had to remove and reapply one sock several times because my little toe kept getting caught in a loop that would tense just as the sock was fully in place.