Sizing Chart: Measure the distance from the first thumb joint to the base of the wrist and the circumference of the wrist. If your two measurements do not match the proposed combination, choose your size based on your wrist measurement.
Zamst Thumb Guard
The Zamst Thumb Guard stabilizes your thumb joint by providing protection and support during activity. The Thumb Guard is equipped with i-Fit technology and Exo-Grid (Custom) Tech, which is a moldable custom fit. The thermoplastic insert can be shaped by placing it in warm to hot water. It can be remolded 20-30 times and switched from one thumb to the other.