What differentiates Thorlos from all other socks is our clinically-tested padding. It is our core technology. It’s the key to protection and comfort. You can see the difference yourself, simply by turning Thorlos padded socks inside out. We use our exclusive THORLON® yarn and other proprietary yarn blends and fabrics to wick moisture away, ensuring a protective environment for your feet.Our core Engineered Padded Technology is adjusted based on foot kinetics consistent with the anatomy of the foot. Our padding density is customized to each part of the foot, with the most density in the ball and heel to protect against extreme impact and reduce the causes of foot aches and pain. The padding will also be particularly dense where your foot experiences peak friction or shearing forces to fight off blisters, pressure, and discomfort. Lighter padding is used in the arch for a contoured and secure fit.