Verified Buyer Reviewed by Jennifer from Colorado on Wednesday, October 26, 2016
I used to work at a boutique knitting shop, we sold a lot of types of yarn including alpaca. Alpaca is warmer than sheep's wool because, like polar bear fur, the shafts of alpaca hairs are hollow inside adding another layer of insulation. In addition to the extra warmth (important here in the high mountains of Colorado), these socks fit me very well and have nice arch support. I like the color and where they hit on my leg.