This is a test sock...I have been reading about Sports or Athletic Socks and the pros and cons of cotton versus Merino Wool. I thought I would knit a pair of Merino Wool socks using a heel that was created by Gerdine Crawford-Strong...called the Strong Heel after the creator of the pattern. It is an interesting pattern as it is knitted on a continuous round with not picking up stitches on the sides as in a Flap type of heel...or picking up stitches in the After thought heel. I found it to be really easy to do and the results were great. This may be the go to heel for me. So I have worn this sock on 3 mile walks and on a couple of rounds of golf. The days I wore them the weather was in the low 90's so very warm. I didn't feel uncomfortable wearing them and my feet were no warmer than wearing cotton socks. My understanding is that wool wicks water and doesn't soak it in as cotton does.