Our Hike Light Cushion Crew, formerly known as PhD Outdoor, is designed to take care of your feet and bring a new dimension to every hike. Our best hiking socks get a makeover with more durable materials, increased durability over time, optimized mesh zones and an even better fit. Our advanced technologies work in synergy with responsibly sourced ZQ certified merino wool to support your performance with natural fibers. Lightweight cushioning in the sole promises extra comfort in your favorite hiking boots or shoes. Recycled nylon offers a more durable design, and the mid-calf height protects you on even the most uneven trails. Enjoy extra comfort on all your hikes with Smartwool. Weight: 68 g Composition: 54% Merino Wool 12% Nylon 31% Recycled Nylon 3% Elastane.