100% cotton on the skin side HEATTECH Extra Warm Tights (with fly) Brand new, unopened Size M Packed with great features: shipping, heat retention, moisture absorption and release, antibacterial and odor control, stretch, texture, and shape retention! Purchased at a Uniqlo store. Selling due to decluttering. This was a stock for my family, but we have enough now. If anyone is looking for these! Please! Reliable anonymous shipping, same-day shipping! I will respond quickly.