In 2009, Klymit started selling apparel and in 2013 Klymit began working with a sister company called NuDown to more effectively develop this revolutionary technology. You can still purchase the NuDown Squaw Peak vest and Mt. Whitney jacket on


The key technology behind the Klymit NobleTek insulation is noble gas. The reason noble gases are such great insulators is because of their low thermal conductivity. On this graph you can see thickness on the bottom X-Axis and heat loss on the left Y-Axis. The thicker the insulation the less heat is lost. So the lower number on the graph, the better.

The top line on the graph is an average value for industry-leading natural and synthetic fibers. The bottom three lines are values for the noble gases, Argon, Krypton and Xenon. If you notice the yellow line, it shows how 4.5mm of Argon has the same thermal conductivity as about 14mm of fiber insulation. Notably, all other insulations are static and cannot change when temperatures vary, but noble gases are dynamic and allow you to have warmth on demand.

The 9 Core Benefits of NobleTek™Variable Insulation: Warmth on demand. Adjustable on the fly.

Warm When Wet: Maintains thermal properties when wet and even submerged.

Dynamic Channel Design: Ventilation is enhanced while deflated, yet when inflated NobleTek™ chambers conform to your body snugly, capturing your body heat.

Windproof: Pressurized chambers of gas never collapse when inflated and are unmoved by wind.

Thinner: Argon insulates up to three times better than the dead air which other insulation traps. Warmer and thinner.

Lighter: Argon is virtually weightless. Based on the volume of gas in the vest, you can change your insulation from that of a windbreaker to a full-on ski parka with no change in weight.

Safe: Breathe easily.  We only use noble gases, which are non-toxic and non-flammable.

Eco-Friendly: The only insulation you will never see in a landfill.

Loft Retaining: Unlike traditional insulation, NobleTek™ will never lose its loft. 

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