One pair.
The zippered design provides a large opening for slipping the foot into the sock. Can be worn under clothing. Medium (5 1/2-8 1/2 ankle, 7 1/2-14 calf) or Large (6-10 ankle, 9-16 1/2 calf); if in-between sizes, order the next size up. Easy On Compression Socks Open Toe.