They have velcro straps that fasten over the top of the shoe. Very easy to get on and off and they really provide you with that extra bit of confidence on the snow.
The floating bridge at Hayward Lake where we did a 2 hour outing today. It is really a great work out running in the snow, the effort is a little more and you can feel your leg muscles working it!
Wind warning for tomorrow with milder temperatures - that will melt the snow. The snow was nice while it was here!