The GEL-SONOMA? 8 shoe is designed for the great outdoors. It's a durable trail model that's made to provide good grip on off-road surfaces. Underfoot comfort stems from a full-length AMPLIFOAM? PLUS 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.