The Point6 Ski Medium OTC Merino Sock has cushioning that surrounds the entire foot and leg. It's Medium thickness adds volume and warmth, great on those cold ski days! Features Made from compact spun merino wool to improve durability by 25%, less bulk and exceptionally soft with decreased pilling.  Plasma Clean: Point6 uses NatureTexx Plasma Clean (bluesign approved) to eliminate harsh chemicals from the process. The NatureTexx process is chlorine free and uses only renewable energy and air. Non-binding Welt Top keeps sock up without being too tight around the leg Size and style name knit inside cuff so you can keep socks properly paired up Exceptional cross stretch hugs the body without impairing circulation and comfortably wraps you in luxurious point6 merino wool Ankle brace keeps sock snug around ankle area and prevents sagging Ventilation panels facilitate breathability and streamline fit Deep heel pocket creates anatomical fit around heel, prevents slippage and movement around the heel Reinforcement in wear areas for abrasion resistance and greater durability Arch support keeps sock snug across instep Sport-specific cushioning is designed for each activity. Terry loop cushion retains its resilience and will not pack out like cotton or synthetic fibers Ultra Smooth toe seam has no lumps or extra fabric to irritate the toes. Tapered toe box anatomically hugs the foot. Point6 37.5 Ski Medium Over the Calf Merino Sock