Six graduated compression zones provide support and improve circulation.
Patented CZT 6 zone technology: Zone 1 Light Compression, Zone 2 Firm Compression, Zone 3 Firm Compression, Zone 4 Moderate Compression, Zone 5 Moderate Compression, Zone 6 Light CompressionCalf Circumference: Small (fits 9½-14½ inches) Medium (fits 12-17 inches), Large (fits 14-19 inches), X-Large (fits 14½-20 inches)Ankle Circumference: Small (fits 6½-8½ inches), Medium (fits 8½-10½ inches), Large (fits 9½-12½ inches), X-Large (fits 12-14 inches)Wash Instructions: Hand wash and air dry.24% Lycra® spandex, 76% micro-nylon The lightweight and breathable sleeve easily slips on and off without binding to provide all-day relief.