Not like the Terraventure 4, the Mtn Racer three doesn’t have a flexible rock plate during the forefoot. To deliver underfoot safety with out a plate, Topo improved the stack height by 3mm during the heel and forefoot. The Zipfoam midsole has also been up-to-date; the foam is softer, lighter, https://medium.com/@ch-usama/the-ultimate-guide-to-finding-the-best-brooks-running-shoes-for-your-feet-in-2024-f86e38e5bbde