Performance training shoes are simply lighter or more responsive versions of standard trainers. Usually built on a semicurved or curved last, they’re for fast-paced training or racing. They usually have less cushioning than a normal running shoe, for light weight and responsiveness. Some are relatively stable; others are not.
You should buy these if: you’re a quick, efficient runner who wants a light second shoe for fast-paced training; or you want a racing shoe, but want more support and cushioning than you’d get from one of the pure, superlight racers.
Choosing a Shoe: The Very Basics | Interactive Shoe Finder
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