This leg compression size chart has all the information you require to determine the correct size. 

Its important that you have the following measurements when ordering your product:

Thigh-High garments:

• Circumference of your leg just above your ankle
• Circumference of your leg around your calf
• Circumference of your leg just below your knee
• Circumference of your leg around your thigh
• Height of your leg from your thigh to the floor

Below-Knee garments:

• Circumference of your leg just above your ankle
• Circumference of your leg around your calf
• Circumference of your leg just below your knee
• Height of your leg from just below your knee to the floor