When I biked across Kansas this summer with clips & straps I wore a pair of Keen hiking shoes. If you're after maximal efficiency, I'm sure a lighter, smaller shoe would be preferable. However, they worked wonderfully for me. The soles are quite stiff, and my model had mesh in the uppers, which helped with air circulation. Off the bike, I can't ask for a more comfortable shoe than a pair of Keens. Be sure to check your clip dimensions because some Keen shoes are quite bulky at the toe.