Adidas Ultraboost 21 Running Shoe: A Classic Reinvented
When Adidas launched its first Boost shoe, the unique midsole cushioning sparked a revolution in shoe design. Suddenly every brand was rolling out its own proprietary midsole foam. Fast forward a few years, and the iconic Ultraboost has become the flagship running shoe for Adidas, and it’s still going strong: The company has released the …
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