As much as we wish otherwise, it isn’t shorts and t-shirt weather all the time. There are too many frigid occasions that require a source of warmth other than the friction generated by simply rubbing your hands together. When those situations happen, you need to be prepared. The Zippo Hand Warmer is essentially a modified version of the Zippo lighter that slides into its included fleece bag and generates enough heat to keep your precious digits functional. Pop the rugged metal top, fill it with standard Zippo fluid using the filler cap and enjoy up to 12 hours of warmth.