I made a recent purchase for more socks due to a few reasons. First I run more than most and have crooked toes. Which has lead to significant blistering issues in the past. These are the first conventional running, non-toed, socks I've bought in several years. After trying a new a pair of Swiftwick socks I didn't have any blister. This is critical to my running. Needless to say I bought some more. I also engage in runs in the mountains where snow and rain can be serious issues. Preventing my feet from becoming macerated on extended pushes is critical. The inclusion of Olefin in your products is something that encouraged my purchase. Though the socks I purchased had lower percentage, 10-30%. I couldn't pass up your recent sale. One doesn't always run in the mountains. Lastly customer service, the first pair of Swiftwick socks I purchased got a hole after only a few runs. I was trying to purchase a mostly synthetic sock and apparently I'd purchased a wool based sock. Which for reference doesn't seem to hold up to massive hill training days. After contacting customer service they walked me through the process telling me of the purchase error. Which they were able to tell me as the photo I had sent happened to show the colored L. Which is a lovely system by the way. ( Might want to make this more obvious to customers. Pieces of information like this might help when staring into the void of sock drawer. Especially when your adventuring shoes are calling.) I was then sent a replacement pair. One with all synthetic fibers. Also after receiving my recent purchase there was a pair missing. COVID-19 is affecting us all in interesting ways. Again I contacted customer service with all the details. I promptly had my errant pair in the mail. It also doesn't hurt your company is trying to help those helping others. Dearric Winchester