1,material:Far infrared, anion, magnetic photonic fibers 2,Color: black, grid black or red color etc. 3,any size is ok for us 2011 healthy energy socks:1,material:Far infrared, anion, magnetic photonic fibers, the silver ions anti-bacterias fiber, the bamboo carbon series function fiber2. Color: black, grid black or red color, brown, gray, etc3. Packing:special pantyhose packing (color box, OPP ...