Designed with MARCORSYSCOM to provide Marines with an all-season versatile military boot sock, the Darn Tough Merino Wool Midweight Tactical Sock with Cushion will stand out in any tactical situation. Slightly taller than mid-calf, with resilient terry loop cushioning surrounding calf and foot bottom, and mesh knitting on top to increase breathability, this sock will give your feet the perfect barrier between your foot and boot while wicking away moisture and keeping the feet cool.