You know how those longer hikes can be: Warm at the trailhead, and cool once you reach the summit. A key component of these socks, merino wool naturally adapts to these changes, trapping body heat and controlling perspiration at the same time. Smartwool further enhances them for the journey ahead with a bunch-free, crew-height design that's ideal for hiking boots.

• 66% merino wool/33% nylon/1% elastane
• Crew height
• Ribbed cuff helps sock stay in place
• Y-stitched heel creates a more comfortable fit and reduces bunching
• Machine washable
• Made in USA