This slim puffer jacket is filled with bison down — a surprisingly sustainable material with serious warmth

When you buy through our links, we may earn money from our affiliate partners. Learn more.United By BlueOutdoor startup United By Blue just released its popular Bison Puffer Jackets and Bison Puffer Vests in new colors for men and women.Instead of using duck or goose down, The United By Blue Bison Down Puffers use a proprietary blend of sustainably sourced bison down and recycled polyester. After owning my Bison Puffer Jacket for two years, it's held up well and I'm still impressed with how