The UnderWarmer® is a single-use, compression fitted HEATED base-layer shirt for cold weather activities. 8 HEAT PACKS are built-in and will activate within minutes of removing from its packaging, staying warm for over 10 HOURS
Headed Outdoors or To The Game?… Better Get an UnderWarmer!!!
It’s a no brainer.
Loved it .. kept me warm the whole day ..
I’ll be wearing one to every cold game this season!”