SIMPLY SOUTHERN. YTH-CBDRS-SUNFL. YOUTH SUNFLOWER CROSS BACK DRESS. BLACK. Get your little cutie ready for summer in this Simply Southern Youth Sunflower Cross Back Dress in Black. This dress is made of a soft and stretchy material keeping your comfortable and cool during the heat of the summer. The cute crisscross detail at the back will really win her over. 95 percent polyester 5 percent spandex.