MegaWarm Jacket

The MegaWarm Jacket (available in men’s and women’s sizing) is the warmest coat in the world, with a CLO (a measure for thermal insulation that an article of clothing provides) of 9.25—the highest rating of any jacket. With LifeLabs’ innovative WarmLife proprietary technology, this garment not only reflects 100% of a wearer’s body heat back to them, but it’s also fully weatherproof, light and breathable thanks to its ethically sourced goose down and 100% recycled polyester. Combining science and design, MegaWarm does the most to prevent chill while using a smaller amount of energy and materials. It’s truly the warmest jacket we’ve ever tested, though that comes with the reasonable compromise that it’s pretty bulky.

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