Smartwool's Hike Full Cushion Crew socks, formerly PhD® Outdoor, use cushioning on the entire sock to help maximize warmth and protection. These Merino wool hike socks are built with their top sock tech, including Indestructawool™ technology for enhanced durability, 4 Degree™ Elite Fit System for a dialed-in, performance-oriented fit, and Virtually Seamless™ toe for maximum in-shoe/boot comfort. Smartwool have updated their hike line by improving mesh zones for additional breathability, as well as creating a new ply structure that reduces pilling while enhancing hand-feel and comfort.

Features:

• Cushioning on the entire sock for added protection and warmth
• Indestructawool™ technology with extended durability zones
• 4 Degree™ elite fit system for a dialed-in, performance-oriented fit
• Activity-specific mesh zones for added breathability
• Virtually Seamless™ toe for enhanced comfort
• Shred Shield™ technology to reduce wear from toes
• Comfort welt with 'stay-put' fit

Materials:

• 56% Merino Wool, 11% Nylon, 31% Recycled Nylon, 2% Elastane

More information regarding Material Impact can be found here.