I have tried everything to keep my feet warm, moisture wicking liners, all different material socks, different boots etc. I got a cheap pair of battery socks off amazon last season and that's the only thing that has ever kept my feet warm period. I have not done any all day sits with them to test battery lift, but for 3-4 hours its great. you can walk in with them off then turn on once you sit down to cut down on sweating.