Baby Fine Loose Wave Extension Weft. The Optimum Cuticle Remy Hair is truly the most exceptional ever. Unlike other commercial hair, the cuticle has not been removed from the hair, just as nature intended. Cuticle hair is created by careful processing which leaves the cuticle layer of the hair in place. The result is a superior hair item that colors beautifully and has the highlights and natural shading of your own hair.