I have bought 8 different "Ralph Lauren Pink Pony" items on EBay over the last 6 months or so.  All of them said they were "authentic".  I am not sure of the authenticity of any of them, if they are authentic they are definately seconds.  I bought 2 polos from 2 different sellers, I also happen to already own the same Big Pony polos that I had bought in a Ralph Lauren store in other colors.  The two that I bought from EBay were at least 5 inches shorter than than the originals bought at the Lauren store (yes they were the same size and style).  They were pretty much useless to me, so I gave them to my daughter who is a size 4, she wore them once and after I washed them they shrunk so badly that they would now maybe fit a small child, and again, I stress maybe.  They were labeled womens large, I would say they are equivalent to a childs size 10 now....Buyers beware, you get what you pay for.  I also bought 2 different tote bags, one was a "mini" my fault because I did not realize that the mini that they were selling was not the same as in the Lauren stores, also the other bag I bought does not even exist in the Lauren stores, it is similar, but it is not the same thing....again buyers beware you get what you pay for.  One last thing to add, I once was a buyer for a very prestigious department store and Lauren was one of the lines I bought, I guess I thought that I was getting a bargain, but my money would have been better spent buying 2 items at regular price than having 8 items that just sit in my closet, that I will be donating to charity later this year.