The combination of Polyester and PE, it will offer you two kinds of sensations on your body. 4.Stimulate your blood circulation and relief from daily fatiques. 5.Refreshes and revitalizes the skin, makes it radiant. 6.The colorful and beautiful design makes you happy in the bath. 7.The PE material is environmental friendly & free of fluorescent pigment. 8.It can be accepted by skin types without any allergic reactions.