Kapok is the lightest fiber in the world, with an excellent thermal capacity.
Kapok is a smooth and silky natural fiber (identifiable also as “vegetal feather” or “vegetal cashmere”), which comes from the fruit of a tropical plant belonging to the Bombacacee family. It’s a natural source, annually renewable and environmental-friendly.
Kapok is a hollow fiber, made of very thin tubes of cellulose which are full of air and covered by a layer of natural wax. It’s light and elastic, non-allergenic and extremely thermal insulating, as it can contain a maximum of 80% air.
Kapok is washable and water-repellent, it doesn’t retain moisture and, as it’s not so hygroscopic, it naturally stops the proliferation of bacteria.
Kapok, thanks to its density of 0,35 g/cm³, is the lightest fiber in the world.
It’s totally biological as it spontaneously grows in Nature.