The Myo armband is made of a flexible, durable elastomer similar to that used in many
wearable wristbands. The sensors are made of stainless steel and contain trace amounts of nickel. In light of recent dermatological issues with other wearables, we have been very careful with the selection of our materials. Materials were chosen to have as little potential to react with the skin as possible. However, as with any type of jewelry, some people may experience skin irritation. Numerous factors can cause an allergy, such as nickel sensitivity, reactions to bacteria that can accumulate on the surface of the band material (as is the case for other wearable bands as well), a reaction between the armband and your soap or perspiration, or an allergy to the material of the band.
If you are experiencing discomfort while wearing the Myo armband it is suggested that you adjust the orientation of the device. Changing the orientation can be done without removing the armband from the arm, rather just twisting it to sit slightly differently around the muscles. Taking short breaks and fully removing the Myo armband from the arm is also recommended. If you have persistent or recurrent discomfort after use, stop use and see a physician.