Darn Tough Run 1/4 Ultra Lightweight Sock Size:XL Designed to hold its shape

Designed to hold its shape wear after wear and last longer than conventional blends the Cascade is the next generation of wool baselayers

It balances stability and power with a surprisingly nimble

Its neutral stance promotes better balance and stability on snow

5-liter reservoir and an insulated hose and bite valve cover

Darn Tough Run 1/4 Ultra Lightweight Sock Size:XL Designed to hold its shapeBuilt 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,