Whether you wear them on the track or wear them through the mud, the Darn Tough Quarter Ultra Lightweight running sock has got you covered. Constructed with fine gauge knit Merino wool, the Quarter sock is ultra-light and ultra-breathable. The performance fit hits just above the ankle and hugs the contours of your foot to prevent slipping or uncomfortable rubbing. No matter if you prefer yours with or without cushioning, you’re sure to feel the benefits of the fast-drying, fast running Quarter sock.