Premium territory; the "sweet spot" for excellent warmth-to-weight ratio.
If the duvet goes flat, tumble dry on low with wool dryer balls to break up clumps and restore fluffiness. How Long Can You Keep a Goose Down Duvet? - Cuddledown buy goose down duvet
This design uses internal fabric walls to create separate 3D chambers. It prevents the down from shifting and eliminates "cold spots". buy goose down duvet
This is the single most important indicator of quality, measuring how much space one ounce of down occupies. 600–700: Solid entry-level to mid-range quality. buy goose down duvet