The world’s "first cushioned zero drop shoe"—the Altra Instinct—is slated to get an upgrade in nearly every department in 2014, including a boost in style, fit, and overall performance. The ...

A prime example of this is the Altra Instinct 1.5. An upgrade to the original version, the Instinct 1.5 is zero drop shoe that can give even the most traditional of running shoes a run for their ...

But it also has the same stack heights as the Altra Instinct, for a midrange level of protection and road feel. You can get the shoe with these features for 40 percent off plus free shipping on ...

RW’s complete review of the men’s Altra Instinct, including photos, wear tester ratings, Shoe Lab data, and a video review.