Crocs drops the Rx Medical Silver Fox from $49.99 to $14.99. Better yet, code FABULOUS10 cuts them to $13.49. With free shipping via code fallship, that's $5 less than our previous mention and a new all-time low. These Mary Jane style shoes are APMA approved and carry the United States Ergonomics endorsement. Note that the shipping code must be typed in lowercase letters and that the shipping discount will be subtracted during the last stages of the checkout process. There is no sales tax (except CA).