The Shock Doctor(R) Elite SVR Recovery Compression Calf Sleeves use Targeted Compression(TM) to improve circulation and increased blood flow to your calves. Comfortable Compression and Fit Targeted Compression(TM) increases blood flow to calves Anatomical 3D knit design offers a more comfortable fit Technology-Enhanced Yarn Specialty seaweed and zinc yarns for added comfort and odor control Unique specialty yarn for added recovery, energy, comfort, sweat absorption, circulation and antimicrobial properties Millimeters of mercury: 18-21 mmHg at ankle, 12.6-14.7 mmHg at top of sleeve Key Details Calf sleeves Improves circulation and supports sore and injured muscles Includes one pair