The Zodiac Recon AT is suitable for both long and short distance runs, but excels on trails, mixed substrates and roads. Due to the construction of the outsole, this is not a shoe for the treadmill. The rocker shape of the Zodiac Recon AT's sole promotes forefoot strike and forward momentum. When the pain train comes to pick you up, get on and don't get off until it stops. We encourage you to play dirty in the Zodiac Recon AT.