finetrack Dry Layer Inner Socks 5-Toe Crew Size M Black Purchased a few years ago, worn 1-2 times. This is a pre-renewal product. Selling because I don't have opportunities to wear them. No stains or tears. Below is from the website↓ Dry Layer® socks worn under sweat-wicking socks to keep your feet dry and reduce uncomfortable wetness. Reduces problems such as cold from sweat, blisters, and odor. Not only for backcountry skiing, snowboarding, and snow climbing where cold feet are a concern, but also for hiking in the spring and summer seasons, it makes the harsh environment inside your shoes comfortable. Layering with Merino Spin® socks, which combine the best of non-shrink merino wool and high-performance nylon, maximizes effectiveness. This is a used item stored at home, so please only purchase if you understand this.