The Point6 Hiking Expedition Extra Heavyweight Merino Socks offer maximum weight of cushioning for protection and comfort during long days and nights on your feet. This merino wool sock is a solid performer in all weather conditions and temperature zones. Point6 employs state of the art knitting techniques combined with compact spun merino wool yarns versus conventional ring spun yarns. Compact spinning greatly reduces loose fibers for more durable merino products without excessive wear or pilling. Heel and toe areas are reinforced with nylon for maximum durability with ventilation panels across the instep to improve breathability. 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 Hiking Expedition Extra Heavy Mid-Calf Merino Sock