Bio-Shape Design: Exclusive short pattern to match the curve and shape of the an athlete's natural stanceSleeve LockTM and Gripper Pattern: Patent pending sleeve design folds back onto the elbow pad holding it perfectly in place throughout the most rigorous game playAirflow: Breathable four-way stretch mesh down the chest, under the arms and down the back for maximum breathability and range of motionAntimicrobial Fabric: Constructed with supportive four-way stretch antimicrobial fabric that wicks moisture away from your body and protects against odor Shock Doctor 369 Youth Core Long Sleeve Shirt, Medium, Black MS1254409 MS1254409 733313033358