J.Crew, which occasionally strays from its stable of conventionally thin models to feature celebrities like Katie Holmes or Lauren Hutton, has a joyful-looking Crystal Renn modeling swimsuits in their latest catalogue. She wears one-piece bathing suits in three pictures and bikini bottoms with a cover-up and a cardigan in the fourth. From what we can recall over years of ordering swimwear from J.Crew, this is the first time the catalogue has ever featured a non-straight-size model in its swim section. The photos aren't on the J.Crew website yet, but you can see them in our slideshow.