Stylekim Slimming Compression tights Footed Pantyhose stockings 75% Nylon / 25% Spandex, Machine Washable Compression : Opaque(15~20mmhg) &gt; Opaque for winter(10~15mmhg) &gt; Sheer(30 deniers) Size : S-M (4'11"~5'7" / 100~150lb) , L-XL(5'2"~6' / 120~180lb) Opaque : For Early Spring, Fall, Winter / Sheer : For summer use / Closed toe. Stylekim compression pantyhose uses graduated compression to your legs.