Down Fill - Backpacker - Backpacker Magazine - Your Backpacking, Hiking, Camping and Ou
What does the 650-fill or 700-fill label on a down jacket mean? ... Question: I’m looking at down jackets. Some labels say 650-fill, some say 700-fill–what does it mean? Is it a unit of density of the down material or is it the quality of the down materia...