Why is Possum fiber so warm?!

This is because possum fiber has an unique hollow structure which acts as an insulator.  This structure is very rare and only Polar bear fur has a similar fiber structure. 

Based on independent studies by Centro Tessile Contoniero e Abbigliamento S.p.A. and the University of Otago, possum fibre is 50% warmer than merino wool and 35% warmer than cashmere!

While we are here, it is good to mention that Brush tailed possums are originally from Australia, and they are protected there.  The only reason New Zealand offers possum products is because they were wrongly introduced into New Zealand and become a pest, harming the native forests and eco system.  All possum fiber nooan uses comes from the pest control program of New Zealand Department of Conservation (DOC).  They are not farmed animals and 100% eco-fur.