Reebok Lacrosse Protector 9K Arm Guard FitLite arm and floating elbow technology-Lightweight form fitting protection FIT arm construction-Conforming upper arm, lower arm and elbow for a custom fit Griptonite on elbow areas-Locks in the perfect fit and keeps pad from sliding down the arm Directed sweat management-Channels moisture away from elbow Form fitting and ventilated mesh lycra sleeves-Prevents slippage while improving comfort and breathability