One of the phenomena of down is its compressibility. Each down product can be packed in a very small transport bag or compression bag. After unpacking, our down will easily regain volume and thermal properties. However, down products should not be stored permanently compressed. On a daily basis, it is best to keep sleeping bags in a dedicated cotton bag and clothes hanging in the wardrobe, thus providing adequate space and air flow, so down can serve us longer. It is also worth patting down where it is most clumped up.