fabric-and-synthetic Imported Rubber sole \"SNAP LOCK\" closure: Stainless steel coated magnetic buckle for easy On/Off, secured closure, rustproof **3 adjustable straps for best fit & comfort. **Convertible back straps to wear as slide sandals **Shock-absorbing sole provides cushioning & flexibility. **Very slip-resistant wet or dry. **Textured insole provides extra grip preventing the feet from slipping when wet. **Waterproof. **Machine washable. **BPA free. **Easy exchange with free shipping both ways (size/color/styles/defective). **Half size up is recommended for wide feet. **Shoes will be shipped without box.