Down overfill is offered as an option on our sleeping bags. We have worked to optimize the fill amount in our sleeping bags, however some people desire a more densely stuffed sleeping bag.
Overfill packs the down more tightly in the sleeping bag. It can reduce the possibility of cold spots created if the down shifts as you move inside the bag. In addition overfill can increase the warmth of the sleeping bag. However, since the baffle height stays the same in an overfilled bag, the amount of warmth gained is limited to 5-10°F.
If you would like overfill in your sleeping bag, please use the option above at the time you order the bag. Overfilled bags are custom and will require an additional 7-14 days to complete. Overfilled bags are non-returnable.