Yet another one of brand's lightweight offerings, the Superior 4 weighs 7.9 ounces. The TrailClaw lugs on the outsole are great for trail runs, and they'll keep you stable even on typically slick surfaces. The GaiterTrap and StoneGuard allow for optional protection from rocks and whatever else you might encounter out on the trail. The midsole uses the brand's Quantic foam, which is even lighter than its Ego cushioning. This sleek shoe is available in color combinations such as gray and lime, gray and red, gray and blue, and a simple black option for minimalists. The Superior 4 lets you experience what it's like to tackle a trail in bare feet, without actually exposing your soles to the elements. That's why many trailblazers consider these the best Altra men's running shoes.