OCOOPA USB Hand Warmer/Power Bank
This double-sided hand warmer starts cranking out heat three seconds after you hit the power button. It offers three different levels to choose from with the highest churning out a whopping 131 degrees of heat. Made from aircraft grade aluminum wrapped in plastic, it’s durable and good for up to eight hours of continuous use per charge. Buy Now $29
The Outdoors Way Electric Hand Warmer
Designed for hunters and other hardcore outdoors types, this hand warmer offers double-sided heat and up to seven hours of warmth per charge. Made of aluminum, it offers two heat settings, doubles as a backup battery, and packs a 55-lumen flashlight that has an emergency strobe setting. It comes with its own carrying case for added protection. Buy Now $40
Human Creations EnergyFlux Ellipse
Buy Now $35
Human Creations Energy Flux Slim
Although it’s the smallest model here, the flux slim still packs a powerful punch. It has many of the features of its larger brother — two heat levels, a 4400 mAh battery, push button power — but it’s half the size. That means you can toss it in the pocket of your jeans and it won’t look like you have a thigh growth out. Plus, its aluminum skin looks sharp. Buy Now $25
Big Blue Hand Warmer
The Big Blue is, well, big. But the smartphone-sized double-sided warmer offers two power levels, a LED flashlight, and a 6,000 mAh battery that offers nine hours of continuous warmth on the lowest setting. While it’s too big for a pants pocket, the large size offers the most surface area so your hands can warm up faster. Buy Now $22
