Like all of the options on this list, Altra's Provision 3.5 features the brand's FootShape toe box and Zero Drop platform. So let's skip to what really makes it stand out. For starters, it's a stability shoe, and it offers plenty of supportive features. For example, the GuideRail is a stabilizing wall that helps tired feet remain steady. Meanwhile, three Stabilipod pillars help reduce overpronation. The Varus wedge also addresses overpronation issues, but it does so by providing a slope that elevates the medial side. These are certainly some of the best men's Altra running shoes for flat feet. But despite all of its features, the shoe only weighs a modest 10 ounces. It has a high degree of flexibility too, thanks to the midsole's gridded grooves. The men's version is available in cool and neutral colors like gray, blue, and black.