Material: our thigh high socks are made of 80% cotton and 20% spandex, soft to touch, skin-friendly and comfortable, breathable and sweat-absorbent, not easy to pilling. High elasticity: our extra long socks have 200 stitches; the density is greater, the socks made are more elastic, looser and more comfortable, and there will be no excessive pressure on the legs; the thickness of the socks is appropriate, and they can be used all year round.