Removable, washable, next-generation LiteRide foam insoles are super soft, incredibly lightweight and extraordinarily resilient Enclosed toe and heel meets workplace standards Fit is relaxed, with tapered fit in the back of the heel for a secured fit Enhanced arch support adds to the comfort Crocs Lock slip-resistant tread LiteRide: Revolutionary. Sink-in softness. Innovative comfort. ASTM F2913-11 tested, CE CertifiedMeets or exceeds EN ISO 20347:2012, OB, SRC