Coco limon skirt, brand new

Very soft pencil, fitted, navy and gray skirt, form fitting and great for casual wear or work. It's about 23 inches long. The size says S/M, however it fits me but the waist is just a little loose. I'm usually a size 25/26 or 0. I have three skirts available, the muticolored one was worn once and it's just a little big for my frame. The other two are NWT and are solid navy and gray. I'm 5'4 and 109 lbs.