JCrew Gwen Lace Trim Slip Skirt. NWT. Size XS. This '90s-inspired skirt comes with intricate lace embellishment at the hem and an elastic waistband for the perfect fit every time. It's crafted from our new textured satin, which has a light-reflecting finish, plus a pre-crinkled look and feel (so it's extra-perfect for packing). Sits at waist. Length: 19 1/2". Falls above knee.