It's not surprising that time and time again Darn Tough Vermont Socks find themselves in the spotlight. This time it is a highlight of the Vertex running sock by Mountain.com. In their article "Running Gear, Time tested goods, from the lightest windbreaker on the market to our favorite sports bra", the Vertex running sock was commended on it's lifetime guarantee and having the right amount of support. Made in two sizes, no show and 1/4 crew, you can choose between minimal or maximum protection for off-road conditions. Add in the Merino wool construction, and you have a super breathable sock that hold up after intense use.