(TrendHunter.com) The Proof PowerFill Down Jacket is a packable piece of outerwear crafted with travelers and adventurers in mind to help them maintain a one-bag travel lifestyle. The jacket is characterized by its…(TrendHunter.com) The Proof PowerFill Down Jacket is a packable piece of outerwear crafted with travelers and adventurers in mind to help them maintain a one-bag travel lifestyle. The jacket is characterized by its…