*79% cotton (impossible to find now with most socks being primarily polyester which stinks, literally and feels horrible)
*Thick, cushiony sport-like bottom, great for sweaty, active feet
*More versatile/less casual looking top (due to the high cotton content and not too elasticy)
*Comes in packs of SAME colored socks (sorry sock monster) & in black! (also hard to find)
*Perfect, versatile sock height: Lo-cut tends to slip inside the shoe and are tres casual, higher socks look lame with shorts and can be too tight and hot for sensitive kids.

Note re: sizing - Med says 9-2-1/2 shoe size but are too big for my size 9 son. Were great for my size 11 son with room to grow.

Exact fiber content break-down:
79% cotton
17% polyester
2% natural latex rubber
1% nylon
1% spandex