I have not tried this yet. But this is what the deal is. This site is having a 50% off sale when you buy 2 or more pairs of shoes and their maryjane style crocs are on sale for 9.99. I was quick to post this to get it out for you, but I now understand that it is only this style that will come up with an additional 50% off.
Use this code for free shipping: MALINDI09
I would go now or they may discontinue the sale.