You get the free panty with No purchase required BUT in addtion to the free panty you may take $25 off your purchase of $100 or more OR take $10 off your purchase of $50 or more OR take $15 off your purchase of $75 or more.
Keep in mind that when you get the free panty you must give them the coupon card. So.. be ready to shop and use the discounts at the same time you get your free panty. Shouldn't be too hard to do :-) Also, CORRECTION this is Not good for online purchases.