32Degrees Weatherproof Men’s Heat Heavyweight Thermal Lounge Pants (Navy) for $7.70. Shipping is free on orders over $35. If needed, use this Filler Tool to pad the order for free shipping. Here is a screenshot for reference. The lounge pants is made of a blend of acrylic, polyester, rayon, and spandex, machine washable, quick dry, and anti-static.