Warm HEATTECH sweatpants. Size S It's small and hard to see, but There is a faint stain on the lower part of the left leg. Please check the photos 4, 5, and 6. - Brand: UNIQLO - Material: 55% Polyester, 14% Acrylic, 10% Rayon, 9% Nylon, 2% Polyurethane Thank you for looking.