Doc & Mark's Classic Collection is an exquisitely engineered product where each material used in this product is deliberately chosen and positioned for superior comfort and to reap the benefits of applied biomechanics while walking. The soft, breathable comfy socks with leather lamination & insole with metal shank provides maximum support while walking and diffuses the effect of feet on the ground by absorbing impact, resulting in proper ankle and knee support as well as a strain-free backbone. Why walk when you can float!. Take the right steps andl feel the difference in comfort with the Classic Collection series