The Mitre Impel football, available here in white, red and black colourway. The Impel is the most popular Mitre training ball that you can get and is great for grass and astro turf playing surfaces. Mitre Impel soccer balls offer a soft touch and cushioned impact due to the soft foam used in the construction of the ball. As you would expect from the grass roots favourite Mitre, the football is engineered to maintain shape and reliability during the demands of full on training sessions. Impel balls also feature a reinforced bladder for enhanced air retention. Available in sizes 3, 4, and 5 and several other colour combinations, the Mitre Impel football is part of our outstanding selection of Mitre training balls. Soft foam lining. Reinforced rubber bladder. Three size options.