On February 14, Marc Jacobs' Bookmarc store in NYC was the place to be: Kendall Jenner, Gigi Hadid and Emily Ratajkowski (who are all featured on a T-shirt, as is Cara Delevingne) were present to sign copies of issue 13 of LOVE Magazine, from which the images on the tees were taken- and charity tees and all sale proceeds of the T-shirts benefit the work of DAA.
There were only 100 tees made, so it was first come, first served. Today (February 16) we hear that there are still a few t-shirts available at Bookmarc, so if you want one you're still in with a chance!
If you want to see all 3 tees, the girls and the signing event at Bookmarc, please read this article in The Daily Mail: http://www.dailymail.co.uk/tvshowbiz/article-2954565/Kendall-Jenner-wears-T-shirt-featuring-naked-Gigi-Hadid-LOVE-magazine.html