Men's socks: The HIKE FULL CUSHION CREW, which you may know under the former name PhD® Outdoor, have a full mesh construction and will provide maximum warmth and protection for your feet. These ZQ-certified, sustainably sourced Merino wool socks are designed for hiking. They boast cutting-edge technologies like Indestructawool™ for increased durability and Virtually Seamless™ with flat toe seams that make your feet feel like cotton. The 4 Degree™ Elite Fit System technology uses an effective combination of elastic materials to ensure the sock stays in place. These hiking socks now feature improved zones of breathable mesh and a new layer structure that minimizes pilling and is soft to the touch and comfortable to wear. Not to mention that Smartwool's most comfortable and best-fitting hiking socks are now made from recycled nylon, making them more sustainable than ever. And this is something that can warm not only your body, but also your soul.