Crocs Womens Retro Mary Jane Slip On Shoes Synthetic Croslite Upper, Croslite Footbed, Rubber Outsole Slip On And Off Ease With Flexible Slingback Ankle Strap Accented With Cut Outs At The Toe Box The Croslite Footbed Provides Impact Absorbing Comfort As Well As Anti-Microbial Protection Massage Circulation Nubs Along Footbed Stimulate Blood Flow Keeping Your Feet Comfortable