Heated socks
I purchased the fieldsheer heated socks for deer hunting. They work good; you can definitely feel the heat when on highest setting, however, it does consumer battery life quickly when on med/hi settings. I do some dark-to-dark sits and even on low, battery would not last. I try to intermittently turn them on to take the chill off for a while. Also, a suggestion is to have the ability to turn the socks off from the app, vs having to dig back into your socks and manually turn the battery switch off. That is a major inconvenience when in tree stand and have several layers on. Overall good product...