Bests & Worsts Reviews from Amazon

This hat did not feel like wool and I went to a yarn web site to learn how to test for wool. One easy test is to take a piece of the product ( I cut a long strand of yarn from the interior of the cap) and burn it. True wool turns to ash while an acrylic turns to a sticky piece of plastic which this did! A second test is to place a piece of yarn into a small sealed container of bleach. Natural fibers like wool dissolve while synthetic fibers are unaffected. This cap failed both tests