Set of two. They have been washed many times and show signs of wear, but they are in good condition as there are no noticeable stains or holes. Uses heat-generating cotton. Warms the body effectively with the heat-generating power of cotton (85%). The inner side is brushed for a soft and warm feel. 85% cotton, 15% polyurethane The moisture-absorbing and heat-generating material extends to the abdomen. These bottoms have an integrated belly band to keep your stomach warm. The waist has moderate elasticity. It fits around the waist. The hem is unfinished, so it feels sleek even when worn under outer bottoms.