keep yourself warm and keep your battery charged. >> there's clayton our model. >> perfect. >> i tried this on. >> go ahead. >> don't break the model. >> it has high -- high, medium and low settings. >> the settings on. it is warm. >> yeah. we just turned it on right before. >> our studio is like really cold. >> cold. >> all right. >> anna is like -- covers herself in a snuggie. this is nice and warm. >> and here you got the -- >> how do you turn it on and off. $129. only one you can't get at sporting goods stores but raven.com. >> this is under armor. everyone knows them, but the ua based 4.0, what's great about it, right here, made for brutal, brutal temperatures. you have the thermals for legs. >> what do you mean brutal temperatures? >> windchills like minus 20? >> i don't know minus 20, usually like negative 5. they have a whole line from 1.0 to 4.0, 4.0 for brutal, 84.99,