In the pursuit of aerodynamic efficiency, most triathletes aim to minimize stack height, or the vertical distance from the center of the bottom bracket to the top of the head tube – that is, lowering ...

Records are meant to be broken. If you ask Nike, so are some rules — like the one set by World Athletics that pertains to the stack height of running shoes. Introduced in 2020, largely in response to ...

Weight: 6.9 ounces (women’s) / 8.1 ounces (men’s) Stack Height: 35-millimeter heel / 30-millimeter forefoot / 5-millimeter drop Topo Athletic’s first high-stack, cushioned performance shoe lands in a ...