Zamst Thumb Guard
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By Zamst

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The Zamst Thumb Guard has a mold-able custom fit provided by I-Fit technology and Exo-Grid tech. The Guard comes with a plastic insert that can be shaped by putting it in warm water. The insert can be remolded 20-30 times and switched between both thumbs.

  • Exo-Grid (Custom) : Custom Internal Panel Stabilizer
  • i-Fit : Open panel design with adjustable fasteners provides individualized fit, enhanced comfort and variable compression levels

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.


  • Thumb Length 3.25-3.75"
  • Wrist Circumference 5-6.5"


  • Thumb Length 3.75-5"
  • Wrist Circumference 6.25-7.75"


  • Thumb Length 5-5.5"
  • Wrist Circumference 7.75-9"

HRM USA is dedicated to always offering the best value to our customers. We will match the price, at the time of purchase any product sold by an Authorized Dealer of that specific product offered at lower price. Proof of lower price is required.

Here's how to qualify for Price Match:

  • If you find a qualifying lower price online, call 1-800-403-8285 or 215-259-2700 Between 9am - 6pm EST and one of our employees will assist you with the price match request.
  • On qualifying products, HRM USA will then verify the current price to complete the price match.

Some exclusions apply:

  • Services such as custom imprinting, extended warranties, ect. 
  • Items must be in advertised as New Condition, HRM USA will not price match against Used, Newly Overhauled, Manufacturer Refurbished, or Open Box Returns
  • Out of Stock or Preorder items do not qualify
  • Products shipped from or sold by third-party sellers (Marketplace Sellers) on Website
  • Price Match will take into consideration final value costs, including shipping and taxes.