Well I just returned from hunting with Granddad this past week and it was clear he was not having much fun because he gets cold really easy these days. When I was in Germany some of the hunters would use a Winteransitz which is like a sleeping bag with arms and a hood. Can anybody point me in the right direction on where to find something like this? I would like to be able to hunt with him as long as possible and feel that short of building a heated blind this is the best route. Although I am open to any suggestions. Thanks, JB