the flash wing socks (knee high), sock size: 9-11 dc comics bioworld produces authentic and beautiful high-quality apparel and accessories based on some of the hottest and most popular properties.product details:3d padded felt flash wingsmaterial:68% acrylic, 30% poly, 2% spandexsize:sock size: 9-11 / shoe size 5-10care:machine wash cold with like colors. do not bleach. tumble dry low heat.