Used DonJoy Performace Medium Knee Brace w Compression Undersleeve Black Medium:Black Featuring STX's signature open sidewall FBR 2I ML Md Lrg Blk Gry Featuring STX's signature open sidewall in rear that flexes on checks and ground balls C Channel technology provides extra strength for checking and ground balls Dual sidewall braces provide stability on shots and ground balls Bottom rail is designed specifically for high pocket placement for additional power when shooting Meets NCAA and NFHS rules The STX Stallion U 550 allows you to run without reins and high collar Water resistant chest pockets Interior stretch woven pocket Zip handwarmer pockets Articulated sleeves with reflective accents and shingled NO SLEEVE BOX TORN Silicone web technology helps absorb shock and shift loads from the painful area of the knee Dual Axis hinges work with the web for improved fit and articulation Compression molded back pad with mesh for maximum comfort and breathability Undersleeve with stash pocket and anti migration technology Reflectivity for enhanced visibility in low light conditions