This is the official sizing guide for Old Bones Therapy Compression Arm Sleeves.
We know this chart can look crazy but we know everyone is shaped differently and we want to make sure our customers get the best fit with their compression arm sleeves.
Please refer to the chart below to find your perfect fit.

IMPORTANT:
Measurements A, B, C, D refer to compression (aka tightness) levels.
Measurements E, F refer to length/height of the compression sleeve.
If you're unsure, use measurement F which is the height from above your wrist to the end of your arm (underneath your arm pit).