LYCRA^® dualFX^® technology brand was developed in response to market demand for high-stretch denim fabrics that keep their shape. It is based on several patented technologies from The LYCRA Company related to dual core yarns and bi-component yarns.

Typically, as fabric stretch increases so does the tendency for fabric growth or shrinkage. By combining LYCRA^® fiber and LYCRA^® T400^® fiber together in one fabric, you get the best of both worlds — the high stretch of LYCRA® fiber and the excellent recovery power of LYCRA^® T400^® fiber. So consumers can have super stretch jeans that fit all day, every day.