Based in Utah, Altra's employees are out in the steep and rocky Wasatch Mountains every day. With terrain like this in their backyard, it's only natural that they would make the Altra Women's Lone Peak 2. 5 Trail Running Shoe tough and comfortable enough to handle the iconic peak it's named after, one of the most rough and rugged in the entire Wasatch. A redesigned version of the Lone Peak 2. 0, the 2. 5 features a tougher upper, lighter weight, improved lacing system, and a slightly firmer midsole. Like Altra's entire line of running shoes, the Lone Peak features a Zero Drop design for a more natural and smooth running style that properly aligns your posture and reduces knee pain, ankle sprains, and over striding. It also has a FootShape that gives your toes room to spread out, which improves balance and comfort. Though this shoe is certainly burly enough for the challenge of long distance races like the Wasatch 100, it is also just as perfect for your everyday trail runs. What makes the Lone Peak stand out from the rest of Altra's line, though, is its aggressiveness. A toothy carbon rubber TrailClaw outsole digs into a variety of terrain, with lugs designed for both uphill and downhill traction. StoneGuard technology keeps out pesky rocks and debris while full cushioning keeps your foot comfortable whether you're running an ultramarathon or doing some quick training in the hills behind your house. You'll be hard pressed to find a shoe with a fit that's so natural and a feature set so trail focused that you can run up and into the mountains without a second thought or a worry of what you'll encounter.