What do our customers think about Pierre Henry Over the Calf Socks Performance? Pierre Henry Socks hold elasticity over long periods of time. Plenty of room in the toe box and perfect fit for big feet and wide calves. They're very soft and they look nice! But more importantly for all OTC enthusiasts, they stay up! It feels great to wear them. Helps with circulation and varicose veins. Very comfortable and breathable. Feet are NOT sweaty after long shifts. The quality is great, these are one of the very few pairs of socks that hit at the right height but also stay up all day.