Smartwool SW001439-B25-L men's PhD ski ultra light socks is offered, in a large size alpine blue U.S. 55% merino wool, 42% nylon and 3% elastane. This has dimension of 14" inches overall height. Ideal for high performance boots. This PhD ski ultra light sock offers the benefits of merino in a high-performance fit. Smartwool SW001439-B25-L with Indestructawool technology features a patent-pending construction method for exceptional durability and comfort. It also features light cushioned shin, non-cushioned heel and toe, Shred Shield helps reduce wear from toes. The Smartwool SW001439-B25-L socks are brand new in its original packaging and is backed by a 2 year manufacturer's limited warranty.