For men’s and women’s underwear, circular-knit fabrics with LYCRA® FREEF!T® technology provide the right properties for lightweight, superb-fitting, ultra-comfortable underwear made from natural fibers, as well as fully synthetic blends such as polyester and nylon. Fabrics typically contain 3 to 12% of low-dtex LYCRA® fiber. The LYCRA Company has developed a special quality standard and test method to ensure that fabrics, particularly cotton underwear, have just the right amount stretch and recovery.