I have a set of the IceBreakers - will agree that they are bulky, but I nest them inside one another and strap to my pack. Throw them on while in the saddle for those colder all-day sits or after hiking in and sitting on the ground gun hunting. My feet tend to sweat a lot regardless of socks or shoes worn - though have found just wearing my uninsulated boots with some wool socks and adding anti-perspirant to my feet help with some of the moisture, then throwing these on as soon as I am settled in with a handwarmer pack in the toe area works wonders... my feet are usually the first thing to get cold and it slowly migrates up to the knees and just gets miserable from there.