SPANX Girls Best Friend Tights, Very Black, B The slims built incomfortable body-shaping for the stomach, hips, thighs and rear Non-binding waistband allows for a comfortable fit all day Cotton gusset makes panties optional & eliminates VPL Front & center legsevery time 84% Nylon, 16% Spandex/Elastane. Gusset: 55% Cotton, 45% Nylon