I duck hunt all over Oklahoma. My current waders are absolutely terrible. They're just rubber and no insulation. I don't stand in the water to hunt, but when I put my decoys out, I'm usually freezing to death when I'm done. When I hunt, I sit on the edge of the lake behind a big blind I built. I sit in a camoflage chair and usually have my propane heater under the chair. I always take the waders off after my deke's are out since they're so uncomfortable. What waders do you guys recommend that are comfortable to wear all day? Do I really need 5mm waders? It's not always cold here either. Could I just get 3mm waders and put layers underneath for colder days? Thanks for any info! Matt