I am shipping things overseas in a few weeks and would like to vacuum pack my down jacket to save space. Will putting my jacket in a vacuum bag and sucking the air out of it ruin the feathers in the jacket? It will be in the bag for about 6 weeks, after which I will take it out and store it hanging.
I’ve read around and a few places say that you shouldn’t reduce the size of down things by more than 50%
Who know’s what?
It will compress things down a bit and the longer left like that, the more the feathers will tend to stay compressed.
The trick is to take the items out of the bags and into the drier. Tumble the items in the drier with it set to the air dry or "no heat" setting to allow it to get fluffed out again.