LP: Shin & Calf Sleeve LP718. Provides compression and support over the calf and shin. Designed to fit the upper portion of the tibia, calf and Achilles area. Size: Measure around mid-section of the shin, while in a standing position: 32.5-35cm Small, 35-37.5cm Medium, 37.5-42.5cm Large, 42.5-45cm X Large.