Kapok Fabric

I decided to do a little research in to Kapok Fabric in regards to what was mentioned during my talk with Graham Hunter. He mentioned that Kapok fabric was used for military uniforms, however I did not catch what specifically for. This is what I came across:

Kapok fiber's essential attributes are many: buoyant, resilient, moisture resistant, vermin resistant and smooth, kapok possess powerful performance in a lightweight package.  It 's said that kapok fiber repels water like rain on a ducks back. When a substance does this we call it, hydrophobic. This hydrophobic quality results in the quick-drying, buoyant and moisture-resistant properties, which makes kapok fiber remarkable among natural fibers. Kapok fiber supports as much as 38.6 times its own weight in water. Buoyancy is lost slowly; with one test showing only 10 percent loss after 30 days of water immersion. No other natural fiber is better than kapok for water-safety equipment. When kapok fibers are put under tension they completely return to their original length when the tension is removed. Kapok fiber is devoid of nutritional content thus kapok fiber is vermin resistant. Kapok fibers are smooth and missing the scales of animal hair so it won't mat or felt easily. It weighs only one-eighth as much as cotton, is as warm as wool and is as smooth as silk.

http://archive.paradigmoutpost.com/kapok/kapok-fiber/properties-of-kapok-fiber-fibre

I can only assume that this fibre was used as a type of padding, as when I look it up it says:

Kapok has been used mainly as stuffing, as in life jackets, pillows, and mattresses and is not manufactured as thread or fabric.

  http://www.botgard.ucla.edu/html/botanytextbooks/economicbotany/Ceiba/