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Perhaps the only image from this summer’s World Cup more ubiquitous than The Headbutt was the sleek, photogenic new game ball, the Adidas +Teamgeist. Assembled from 14 propeller-shaped panels, the ball is closer to perfectly round than the traditional stitched 32-panel design, and its thermally bonded construction gives it finer, more waterproof seams. It’s also 30 percent more consistent than previous balls, according to a robotic leg Adidas built to test it. $80; adidas.com















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