These are what I wear (Very Comfy Summer and Winter) they have zipper on the inside hence are not water proof but I wear my jeans over the top and in wet weather the Wets all but cover the zip, I use Dubbins on the leather so keeps the Leather water proof and in good condition, I wore them when I was in the States, not sure if they are available in the States, here's a online seller
Johnny Reb Rogue Zip Up Motorcycle Boot