Made with a blend of 74% nylon and 26% elastane (aka spandex) fabric, the leggings are “medium ... which come in a range of prints as well. Positive Amazon review: “I love these joggers!

Another very common fabric -- perhaps most known for its use in pantyhose -- nylon is soft ... You may know spandex by the brand name Lycra. It's extremely flexible and stretchy, making it ...