The N45 is designed to keep you cool on a sunny city trail or on dry desert rocks. The construction allows for breathability and abrasion resistance, while recraftable Vibram soles with traction lugs and Megagrip save you from slips. Featuring ultralight and durable nitrogen-infused EnduroFoam midsoles, the N45 has a high-energy return that feels like you're walking on air. In women's styles, Precision Fit technology ensures superior comfort and optimal support.