A relatively young upstart in the world of running shoes, Altra was founded in 2009 ... but it isn’t as responsive. Ego Pro is Altra’s top-shelf foam, and it’s made of thermoplastic ...

Altra’s Lone Peak 9+ swaps out the in-house outsole rubber for Vibram Megagrip, one of the top outsole compounds for trail running. “Most of my runs in the shoe were on snowy, slippery ...

The rubber outsole is made in-house by Altra. It doesn’t feature any lugs, but in place of trail-gripping studs there are grooves and channels running along the bottom of the shoe, to provide ...