Women looking for relief from soreness in their groin, hip, and leg muscles may benefit from these Back on Track Women’s Long Johns. With the use of the Welltex technology, these Long Johns use your body’s energy to create a soothing far infrared effect. They come in two fabric options: cotton/polyester and polypropylene. Both fabrics are known for their durability and effectiveness in wicking away sweat and humidity. Due to their excellent wicking qualities, this garment is well suited as an extra layer during physical activities.