Spanx Active Women's Shaping Compression Knee Pant Black Pants 60% Nylon, 40% Spandex; Gusset: 100% Cotton Imported Pull On closure Machine Wash Slim-x performance fabric and double-layer waistband smoothes all over Center-seam free design prevents camel toe Wicking for ultimate comfort Designed to hit at your natural waist for great coverage and no muffin top Cotton gusset makes panties optional and eliminates VPL (visible panty lines)