A set is a top (for example a bra) and a bottom (for example briefs). So if you buy 3 sets but only pay for 2 sets and get 1 for free. Remember that you have to add 3 sets to your basket. Look for items with the 3for2set logo and 1 set will be free automatically. We would like to point out that the discount will never be shown as the cheapest set for free (0,00 $) but each item will be discounted. You will pay full price for the two more expensive sets and the total discount will be equal to the original price of the cheapest set.