I didn't like the SIDIs for about five rides--felt clumsy, couldn't feel the brake pedal, and they were so stiff I couldn't flex my ankles while sitting down. But they earned their keep last ride, when I let my left foot hang too far down and caught it between a rock and the peg. It really hurt, and if I had been wearing any other boot, I'd have broken my foot, I'm sure. As it was, I got away with nothing but a bruise. So I'm sold on the SIDIs. Once broken in, they are comfortable, flexible, and absolutely the best armor for your foot on the market.