NuDown inflatable new line of jacket, are very thin and promises to keep you warm using nothing but air for insulation.

NuDown by NuTech had the best CLO rating (clothing insulation value) warmth-to-weight ratio when inflated with Argon, in comparison to similar fit and function, premium down vests and jackets.

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Every NuDown garment features our patented NuTech technology, giving you the power to create and adjust your ideal temperature no matter what the conditions. 20 pumps give you an initial blast of insulation that will suffice for normal activity on slightly chilly days. 30 pumps will do likewise in harsher cold. And 40+ pumps will protect you in the cruelest of colds, like when you’re on the lift waiting to take that extra end-of-day run.

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via gizmag

source NuDown