I have Tech8's and use soccer socks that I bought from a sporting good store. Soccer socks are long and go slightly past the knee. I fold down the top to just below the knee and provides a double-thickness for my knee guard strap. The sock foot is about medium thickness. I really like them and I never had an issue with blisters, etc. The soccer socks are sold in multi-packs, so a few pair can be purchased for about $10. By the way, you can get any color you want black, blue, red,etc. if that is a concern.