Our Intraknit™ targeted cushion under-knee ski sock will be on all your descents, from the first to the last. Its evolutionary quilting and leg are made of a unique knit that allows for superior breathability without compromising comfort. And let's not forget the extended hem for added coverage. The "butterfly" shell at the navicular bone and ankle minimizes friction and heel movement, while the reinforced heel increases durability where it counts. In addition, our Indestructawool™ technology, 4 Degree™ Elite Fit design, and strategically placed mesh zones ensure an optimal fit, long-lasting comfort, and consistent performance