I bought these socks before my winter hike in Glacier National Park. My feet are constantly cold, I'm allergic to wool so I was worried about how to warm my feet. I'm not an outdoor enthusiast, we were headed to the area and even though it was December I didn't want to miss the opportunity to see some of Glacier NP. Someone suggested I try alpaca socks and I found them at Revain. I'm so glad I did! Feet were warm all the time! A month later we moved to a small farm in Ohio, and this city girl was spending a lot of time outside that winter! I've probably been wearing these socks at least 5 days a week for the past 3 months. They have been washed countless times and have no holes or stains. Not only do they keep my feet warm and toasty, but the compression they give is enough to keep my feet from getting tired or sore. I don't often write reviews but I have to say these are my favorite socks I've ever bought. I will be buying more for next fall and winter!