KathThe Puma Doctrine shoe is not really designed for heavy off-road use. The outsole is heat-welded onto the midsole for lightness and flexibility so it does not have a very deep profile. It came into our range in Spring/Summer 2001 and I was first drawn to it because Mark Sheehan, our American designer who created the whole Puma Complete Series range and could wear any model he chose (Doctrine is £50), wore it and raved about it when we ran together at Christmas 2000. If you contact me via Runners World I would be happy to supply you with something a little more suitable for your needs.RegardsGeoff WightmanRunning Marketing Manager, Puma UK