From time to time we are asked for bags to store korowai or kahu huruhuru in, similar to what other people are offering. Whilst a bag is a convenient way to transport a korowai, it should never be used to store it. Here's why.
Let me preface this explanation by telling you my university degree included textile science, particularly clothing restoration and storage, a subject I am very interested in.
Our korowai (correct name is kahu huruhuru) are made from natural chicken feathers, with natural cotton fabric as backing. Natural fibres should never be stored in synthetic bags. Instead, the korowai should be wrapped in acid-free tissue paper, and stored flat in a cardboard or wooden box , as these are also natural, and will "breathe". Keep the box in a dry cupboard. Inspect the korowai from time to time, to make sure no bugs or moisture have got into the box.
If you want to keep your korowai on the wall, put it behind glass, and away from any direct sunlight. Remember that the odd feather may fall due to the natural effects of gravity, so make your glass cabinet easy to access from behind.
Storing your korowai in acid-free tissue paper in a cardboard or wooden box should ensure that your korowai lasts for generations, and isn't that the purpose of keeping it? To lovingly share it with whanau for special occasions, and hand down to the next generation.
Here's the info in video form: