Sizing is not based on ready to wear size charts. The approximate retail sizing is misses 0-22 and is adjustable. You will need to already know how to sew darts and buttonholes to make this skirt. I would rate this advanced beginner to intermediate depending on your sewing experience. Shelley is a simple wrap skirt sewing pattern with optional inseam pockets. The skirt is fully lined. The pattern includes a lengthen/shorten line so you can customize your length. This is the perfect skirt for all ages and occasions. This pattern is sized for woven fabrics such as cotton, silk, satin, wool, linen, rayon, crepe, brocade, gabardine or poplin. If you would like to use knit fabric, please make a knee length muslin first to assess the fit.