The GEL-SONOMA? 7 GTX shoe is designed for the great outdoors. It's formed with a GORE-TEX? membrane that helps keep your feet warm and dry when you're running in great conditions. Underfoot comfort stems from a full-length AMPLIFOAM? midsole and GEL? technology unit that's strategically placed where cushioning is needed. Lastly, the trail-specific outsole is functional for providing advanced traction. Its pattern helps you experience a confident stride on the uphill and downhill sections of challenging terrain.