Goose down boasts the highest warmth-to-weight ratio of any insulation and has been proven time and again for decades. With its record of success, it was a natural choice for the new Transitions Series. To get the most out of the garment, high-quality 700 fill power goose down has been chosen. This specially selected down provides optimum loft and warmth with the least amount of weight. The quality continues to the shell fabric where highly-constructed fabrications are incorporated to protect the down from moisture and migration through the fabric.
One ounce of down fills 700 cubic centimeters of space.
The Tech-Term "700 Fill" is referred to in the following products: