Darn Tough Run 1/4 Ultra Lightweight Sock Size:XL Combining a lightweight carbon fiber

Combining a lightweight carbon fiber shell

This is a no-frills boot for better or for worse

it maintains airflow while locking in heat

the Montero AR has the added bonus of all-mountain versatility

Darn Tough Run 1/4 Ultra Lightweight Sock Size:XL Combining a lightweight carbon fiberBuilt for everything from quick training miles to long days on the trail, the Darn Tough Run 1 4 Ultra Lightweight Sock delivers a barely there feel with the durability and comfort Merino Wool is known for. Its quarter height profile adds a bit of ankle coverage while staying light, breathable, and ready for anything. Why we like it: This sock stands out for its combination of low bulk comfort and locked in performance. The ultra lightweight knit,