Klymit

The third most common gas in the Earth's atmosphere (Ar) has become the world's most advanced form of insulation. A fashionable vest that can take you downtown, down under and over the top. It's called "Klymit NobleTek" and it was originally invented by some university students who discovered that deep-sea divers use argon gas to insulate their cold-water drysuits. The Klymit Kinetic vest allows you to control your own temperature by adding argon gas for insulation from cold, or releasing gas for maximum breathability. Comparing argon gas to goose down or synthetic insulation is like comparing the space shuttle to a minivan. Argon is nearly weightless, unaffected by moisture and you can dynamically adjust the warmth level by connecting a tiny argon canister to a valve to fill vest, sleeping pads, and other outdoor gear to keep you warm.