Sizing Guidelines: Measure the length from your bicep to just before the wrist. Match the player‚Äôs measured size to the size of the sleeve by inches. If the player is inbetween lengths, mesure the forearm and/or bicep are to gain a closer idea for the correct size. Sizing is very close to elbow pad sizing, just with a longer sleeve. Measurement data is sent by the manufacturer and does not guarentee the perfect fit.