Your feet will be kept warm, even in extremely cold conditions, but the insulation won't add bulk to the inside of your boots.
If you have been trying to find a camouflage hunting and outdoors boot that will keep your feet both dry and warm, this 9" Rocky BearClaw 3D (#9275) boot may be just what you are seeking. Regardless of the weather conditions or your surroundings, you'll be glad that you have this feature keeping your feet dry and comfortable. BearClaw 3D GORE-TEX Waterproof 1000G Insulated Hunting Boot,11ME This fabric so exceptional because it is breathable, waterproof, and prevents moisture from entering these boots.