For shoe size 45 size 43 - 47 rather too big, but still acceptable (if in doubt better order the smaller size); the length of the stockings (taller than 190cm) is super. The material is pleasant, they are relatively easy / comfortable wear. The compression effect is still noticeable, but always pleasant and not restrictive. Spend a day at a trade show in the evening you feel much better than if you had been wearing "normal" socks.