Smart Hair is is our signature "invisi-line" extensions. This two layer hairpiece made waves across the globe. The first weft sits on a mono-line adjustable track while the second layer is clipped in to secure the extensions in place. Simple 3 step process blends the hair and provides voluminous results.Couture Fiber is the latest development in synthetic hair design. Unlike traditional synthetics which immediately burn from heat styling, Couture Fiber has a tolerance to heating tools that overcomes past limitations granting it versatility in styling. Due to its lightweight and versatile capacity, Couture Fiber consistently performs with a natural look, feel and flow.