Built for the top level of play, the adidas 11Top 2012 Ball is thermal bonded for a seamless surface. This gives your ball a more predictable trajectory, better touch, and low water uptake. The cover, backing, and bladder are all made with high-quality materials to ensure the maximum performance. Power Balance Technology gives this ball outstanding flight characteristics through the thermal bonding and the counterweight of the valve. Inside, the latex bladder gives the best rebound. This construction has passed FIFA tests on weight, water intake, shape, and size retention, earning it FIFA's highest rating. 100% polyurethane imitation leather. Does not ship inflated.