I have heard about Decathlon, but I have never checked there. This past winter I got a good deal on some snow boots from a company called Nortiv8 and it looks like they have waterproof hiking boots and shoes, so my wife and I have been browsing their site a bit. I went pheasant hunting about eight years ago now and we ended up walking through knee deep snow through most of the field. My legs were jello the next day I remember. It's funny because at the time it didn't seem that bad.