Threadrock Big Girls' I Swim like a Girl Try to Keep Up Youth Hoodie Sweatshirt Threadrock exclusive UNISEX youth child fit - *RUNS SMALL* *SIZING* (width x length in inches): Small (2/4) - 17" x 21.5" / Medium (6/8) - 18" x 22.5" / Large (10/12) - 19" x 24" / X-Large (14/16) - 20" x 25.5" Size specs approximate due to manufacturing variations 50/50 cotton/polyester blend; no drawcord for added safety; pouch pocket