Our high end stretch knit top fabric is one of a kind. The very breathable and elastic fabric blend moves with you so that the 3 foam layers beneath can do what they are supposed to! It is enhanced with environmentally conscious fibers to sleep on. Natural Bamboo affords great anti-microbial traits and is hypo allergenic. Bamboo also adds a luxuriously soft hand-feel and we are once again using natural easily renewable resources.