[]: 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 Benefits]: Designed for individuals seeking relief or protection from conditions such as calf injuries, cramps, shin splints, calf strains, tendon pain, arthritis, tendinitis, stiffness, sore muscles, and post-surgical recovery. [Application Scenarios]: Ideal for sports and daily activities including soccer, running, tennis, squash, gym workouts, hockey, walking, and weightlifting. [Size Guide]: - M: Length 29", Upper Circumference 26-32", Lower Circumference 16-19" (Recommended for individuals under 130 lbs) - L: Length 30", Upper Circumference 28-34", Lower Circumference 18-21" (Recommended for individuals under 150 lbs) - XL: Length 31", Upper Circumference 30-39", Lower Circumference 20-23" (Recommended for individuals under 200 lbs)