[HIGH QUALITY MATERIAL]: Elastic polyester fabric, comfortable, breathable, and moisture-wicking. Offers good elasticity and abrasion resistance. Helps support calf muscles and keeps skin dry. [FULL PROTECTION]: Features independent honeycomb padding with anti-collision design to effectively disperse impact force. High-stretch material conforms to leg contours, providing compression and balanced support. Offers comprehensive protection for the shin and calf. [PROTECTIVE EFFECTS]: Designed for individuals experiencing or seeking protection from conditions such as calf injuries, cramps, shin splints, calf strains, tendon pain, arthritis, tendinitis, stiffness, sore muscles, and post-surgical recovery. [APPLICATION SCENARIO]: Ideal for use during sports and physical activities including soccer, running, tennis, squash, gym workouts, hockey, walking, and weightlifting. [SIZING INFORMATION]: - M: Total length 29", Upper circumference 26-32", Lower circumference 16-19" - L: Total length 30", Upper circumference 28-34", Lower circumference 18-21" - XL: Total length 31", Upper circumference 30-39", Lower circumference 20-23"