Marathoners and casual runners alike can appreciate the high-tech high-strength Smartwool Athlete Edition Run Crew Sock. Merino wool delivers a boost of comfort managing moisture odor and temperature no matter how long our workouts last and the mesh zones add ventilation and breathability to keep our feet cooler and drier. But their Indestructawool technology truly takes the W with increased strength in high-wear areas for better durability. Targeted cushioning and wear-reducing technology enhance these socks' usability. PRs here we come.