The McDavid Adults' mmHg Calf Sleeves feature Targeted Compression™ technology to promote increased blood circulation in the calves. hDc™ moisture management technology helps you stay cool and dry, and the calf sleeves are antimicrobial. Made of 40% Tactel®, 27% polyamide, 25% Timbrelle® Care and 8% Lycra®. Black. Includes 1 pair.