Originally Posted by
providencebikes
Whatever shoe you decide to get, make sure it's 1.5 - 2.0 sizes too big. If your toes touch the front of the shoe, your feet will be cold because the nose of the shoe freezes during a ride. Also, if the shoe is tight in general, your feet will be cold which is why I use very large boots in the winter.
Personally, I would not buy online because you need to find a shoe that's much larger than what you're used to riding. Having a shoe two sizes larger will have a negative effect once clipped in.