Studies on foot shape have shown that women’s feet aren’t just smaller, narrower versions of male feet—there are differences in overall shape that affect shoe fit. Women’s feet tend to be comparatively wider in the forefoot, with a narrower heel. Running shoe makers take this statistical difference into mind when designing their shoes, and generally build their shoes with different heel shapes and sometimes different heel materials between the two models of the same shoe. Companies like Altra, with its Fit4Her technology, specifically design shoes that anatomically mirror a woman’s foot.
The Turbo 2 is built for women who want to go fast, with a soft, springy ZoomX foam in the midsole borrowed from the record-setting Vaporfly Flyknit 4%. Typically, an EVA foam midsole will compress easily and then take its sweet time recovering shape. But ZoomX technology has blown us away with its quick compressibility and immediate rebound. Nike has added a thin layer of React foam to the bottom so the shoe will hold up for longer, as well as a rubber outsole grid for traction. Overall, this is a high-mileage, versatile shoe that combines the fit and feel of a workhorse Pegasus with the lightweight speed of a racing flat. Just be warned that upper feels slightly less secure than the first Peg Turbo.
If you have flatter feet then running shoes with more cushioning is the way to go. Having extra material to absorb impact on ground strike will translate into more distance and less fatigue. Runners with a more neutral foot type can make selections that are considered more “middle of the road”. Make sure you also check the way that your old shoes wear on the outsole, this can tell you a lot about the way you step.