Oh gosh, I LOVE my Keen sandals - with Frog pedals/cleats. I have worn them for up to 70 miles on a single ride, no problems. In fact the very first ride I did with them was 64 miles. I just wish it would warm up enough to start wearing them again. I put away my winter Sidis but I did 30 miles today with my regular Sidis and by the end of the ride my toes were frozen. That east wind coming over the ocean can be very cold and damp.