The Smartwool Men's Run Compression Over The Calf Socks are built to help runners go farther with the perfect combination of targeted cushioning, breathable comfort, and graduated compression support. Crafted with Merino wool, these performance socks naturally help regulate temperature and manage moisture to keep feet feeling comfortable through long training sessions and race days. Graduated compression delivers 20 to 30 mmHg of support to promote comfort and help reduce fatigue during extended efforts. Targeted cushioning provides protection in key impact areas without adding unnecessary bulk, while breathable mesh zones enhance airflow throughout the run. Indestructawool(TM) technology reinforces high wear areas for lasting durability mile after mile. Finished with an over the calf design and performance focused construction, these socks are ready to support every stride from start to finish.