Down plus fleece lining?

Hi Mike,
I have a fleece blanket and a piece of mocofleece fabric. I use them at home. both weigh about 5.2 oz per sq. yd. Fleece is not down proof so would have to be used in addition to the normal bag lining. Even lightweight wicking fabrics come in at over 3oz/sq. yd. and wouldn’t be downproof either. I don’t think there’s anyway you’re going to get a soft fuzzy-lined down bag under 2 lbs. If you find something soft and under 3 oz/sq.yd. let me know. I have a project in mind :-)
Patti

Thanks for that valuable insight, I didn’t realize that “downproofing” would be the issue. That leads to a possible hybrid solution I’ll search out: 1 lb down warm weather bag with a +/- 1 lb fleece liner.

Mike B,
Downproof fabric is only an issue with low volume down. When you get to 800+ cubic inch down, there are few quills to poke through the fabric. ‘Down’ per se has no quills. When using non-down-proof fabric, just pull out any random quills or feathers as you fill the chambers. This won’t work with low-volume ‘down’ which may have so many quills you will be left with little.

You might consider using a soft microfiber polyester instead of fleece to save significant weight. Also, try using a fleece liner in an existing bag for a few nights to see if you really want to do this. You may change your mind. Fleece can be clammy.