Perform with the power and comfort of responsibly sourced, ZQ-certified Merino wool in Smartwool's Hike Light Cushion Crew socks. These great hike socks have been updated to include more sustainable materials with the addition of recycled nylon, improved durability, updated mesh zones, and an even more perfect fit. Model: SW001614 Color: Ash-Charcoal (H85) Sock Height: Crew Sock Cushion: Light Cushion Indestructawool™ technology with extended durability zones 4 Degree™ elite fit system for a dialed-in, performance-oriented fit Additional body-mapped mesh zones for added breathability Virtually Seamless™ toe for enhanced comfort Comfort welt with 'stay put' fit Height 8" 56% Merino wool / 11% nylon / 31% recycled nylon /2% Elastane