I bought a pair of the Gore Alp-X cycling boots last winter. I found them on line for a huge discount in January. They are like hiking boots with cleats. I bought them on She Fly's recommendation, and they have been great. I don't ride in the dead of winter, but I wear them when the temps get in the mid forties. However, I am pretty sure they only work with mountain style cleats. I have Frogs on my newest bike, and I might be wearing the boots today, as my toe covers or booties do not fit well on the mountain style shoes. I just use booties, wool socks, and chemical warmers if I am riding my bike with regular Speedplay X pedals. Last year I switched out the pedals so I could use the winter boots, but now I won't have to.