UCL printed crest. FIFA Quality Pro certified. 100% polyurethane, thermally bonded seamless construction. Butyl bladder. With a design inspired by the darkest depths of the universe, this adidas UCL Pro Void soccer ball has been created to help European soccer's finest players sparkle on the pitch. Vibrant graphics cover the seamless, thermally bonded surface that wraps around a high-grade butyl bladder. A FIFA Quality stamp guarantees elite performance.