Nature is known for its unpredictable weather and terrain. The Lone Peak with Polartec NeoShell is the solution to both. Wither your run takes you through mud, puddles, streams, or inclement weather- the Polartec NeoShell lining keeps your feet warm and dry by creating a weather resistant barrier between nature and your feet. Sandwiched StoneGuard offers flexible protection from rocks and other trail debris, and the TrailClaw outsole combines unique uphill and downhill lug traction for every trail condition. And like every Altra shoe, fully cushioned ZeroDrop and FootShape toe box place your foot in a natural position for added stability and proper form.