Determine the first 3 designs.
You get three pairs of DillySocks every three months (because sending one pair of socks per month isn't terribly sustainable - and three pairs = three times the joy).
You choose the first 3 pairs for your very first DillyPaket. After that, we'll send you three new pairs every three months that are a good fit for you.
And if you don't like the selection, you can easily adjust it in your customer profile before shipping.