Most thermal pants use polyester/spandex blends; some styles use rayon/spandex. Polyester/spandex is the most common construction.
Most thermal pants use a pull-on closure with an elastic waistband designed to stay in place without digging in.
Fabrics are offered with 4-way stretch or general stretch, and fits are described as straight/athletic, slim, skinny, or classic depending on the style.
Many thermal pants are machine washable and tumble-dry safe. A few velour styles specify hand wash and line-dry or lay-flat to dry.
Common features include fleece lining for extra warmth and moisture-wicking fabrics or fibers to help manage sweat.
