So light, just right - Arc'teryx Norvan SL Hoody - Men's

I travel 6-7 months a year, and this will become my only jacket, at 150 grams! Just add a down vest, and/or a down jacket depending on the climate you are travelling in, and that's it. An outerwear system that will take you around the world, that is smaller than a 1 liter bottle, and weighs much less.