Socrates would be proud of me on this one. If Omni-Heat Infinity reflects your body heat and that makes your body heat the jacket and then the jacket uses that heat to heat your body and then... Wait a sec. Is that why we called it Infinity? Yup. Cold (but really warm) hard logic my friends. If you're wearing Omni-Heat Infinity, you'll never have to go inside again.
Other Lines I Wrote That Ended Up On A Toolkit Slide