Thanks all! I should have been more specific in my initial post.....I spend almost all my time sitting on stand (sometimes all day). Only walking is to and from stand (sometimes a short walk and sometimes close to a mile). Bowhunt northern Illinois from October to January. Rifle hunt UP of Michigan. I've always had pack style boots (last pair are Irish Setter Big Game 800 grams) so not to sure on the Muck and Lacrosse. Are they as comfortable and warm as a pack style? It doesn't look like the Lacrosse Aeroheads have thinsulate in them? Any opinions on the Irish Setter Men's Grizzly Tracker WP 1000 Grams?