Hand warmers are typically sold as a pair. Just the front of each UT3 Lite heats up, but the back is a magnet so you can attach the two to use as a double-sided heater.

Using hand warmers that keep your fingers toasty can be the difference between a miserable day on the slopes and a memorable one. Not into skiing? Still, many of our favorite outdoor activities — ...

Which hand warmers are best? There’s nothing worse than cold fingers when you aren’t near home. If you experience cold winters, you’re probably already familiar with the value of good hand warmers.