xqxcpa t1_j6ho8zp wrote
Reply to comment by N0SF3RATU in Looking for an Egyptian cotton goose down comforter (1000+ thread count & 1000+ fill power) by Ok_Marsupial6435
No "down proof" fabric is going to breathe well. In order to make the fabric impenetrable to feathers, they make it unbreathable.
N0SF3RATU t1_j6homh8 wrote
The way I think this one works is the duvet is divided into multiple sections, each section has down encased within a down proof sachet. The surrounding borders of each section are breathable while the down retains heat, resulting in a breathable duvet that doesn't leak feathers.
*edit: which now that I think of it, must be why the duvet crackles sort of loudly when you move it.
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