Sizing is based on circumference.
Choose the larger size if measurement is between sizes.
Arm Tubes (measure around the widest part of the forearm)
X-Small : 5” – 7”
Small : 7”-10”
Medium :10”-12”
Large: 12”-15”
X-Large: 15”-18”
Sizing charts are guidelines only. Please consider issues such as edemas and contractures.