adidas Performance Context15 Official Match Soccer Ball, White/Night Flash Purple /Flash Green, Size 5 This is the official soccer ball used in the 2015 Women's World Cup Top-match ball features high-end materials in the cover, backing, and bladder to ensure perfect onfield performance Highest FIFA rating, these balls passed tests on weight, water uptake, shape and size retention Thermally bonded seamless surface technology, TSBE, for a more predictable trajectory, better touch and lower water uptake Size 5 is the official ball size