This hoodie has a nice soft internal finish similar to polar fleece, in fact I wasnt sure till I burnt a wee patch on the inside of the sleeve. The 'fleece' didnt shrivel up into a ball of plastic, but turned to ash, with a burnt hair smell, the flame extinguished the moment I stopped the lighter.
The hoodie is not overly cosy. It lets light breezes straight through, great for walking without getting too hot, unless there is no wind. Once body temperature rises with excercise and there is no air movement, the wool reflects some of the heat internally.
Ive worn the hoodie in light rain for less than half an hour. The hoodie kept me mostly dry, with a subtle increase in dampness. Afterwards the garment seemed to have increased in weight by a third with the water it absorbed, I hung it over night, inside, with a little air flow and it felt fine in the morning.
In cool weather this hoodie felt to me to actively regulate body temperature, not too hot, not too cold, just the goldilocks zone.
The garment has demonstrated all the properties of wool, without the prickliness, definitely a quality merino product.
Looks and feels great to wear. Li