ExpressionMed Dexcom G7 UnderPatch CGM Sensor Patches, 10-Pack, Breathable

For a Dexcom G7 or Stelo sensor setup, an ExpressionMed UnderPatch adds a soft fabric layer between your skin and the sensor’s adhesive. Apply it before inserting the sensor to create a comfortable barrier under the device.

Each pack contains 10 patches made from soft, breathable non-woven fabric. The material is latex-free, giving you a flexible layer designed to breathe with your body during the sensor cycle.

These are underpatches, not external overpatches: they sit beneath the sensor. That distinction makes them useful if you want a fabric layer against your skin as part of your CGM application.

Worth noting

ExpressionMed UnderPatches are designed for Dexcom G7 and Stelo CGM sensors. Their main purpose is to place a soft barrier between skin and the CGM adhesive, rather than add an outer layer around an already-applied sensor. The breathable, non-woven fabric offers a flexible feel, while its latex-free construction is a practical consideration when choosing a patch for skin contact. They are made in the USA and come in a 10-pack.

Some buyers describe good adhesion, while others report that the patches did not stay in place as expected. Feedback on effectiveness is mixed, so application is an important part of using them. For additional external support, the manufacturer describes pairing an ExpressionMed OverPatch on top, the OverPatch is sold separately. This under-and-over approach differs from choosing a single overpatch alone: the UnderPatch provides the layer beneath the sensor, while the OverPatch goes on the outside.

Practical tips

Prepare the application area by washing the skin with unscented soap, then allow it to dry fully. The product instructions say to skip rubbing alcohol so the adhesive can stick cleanly. Once the skin is dry, apply the UnderPatch and insert the Dexcom G7 sensor. Following this order places the fabric barrier beneath the sensor from the start.

This routine suits a planned sensor change or a fresh application: clean and dry the skin, position the UnderPatch, and then insert the sensor. The patch’s flexible, breathable fabric is intended to sit against the skin during the sensor cycle, rather than serve as a replacement for the sensor itself. If you want an outer patch as well, add the separate OverPatch over the setup.

How to use it

Use one UnderPatch for a sensor application. Wash the skin with unscented soap and let it dry, do not use rubbing alcohol as part of the stated preparation steps. Apply the patch to the dry skin, then insert the Dexcom G7 sensor. The same under-sensor use is also described for Stelo CGM sensors. The patch is positioned beneath the device, creating the soft fabric layer between skin and CGM adhesive.

Should you buy it?

ExpressionMed UnderPatches are a focused choice for Dexcom G7 or Stelo users who want a breathable, latex-free fabric barrier beneath the sensor. The 10-pack supports multiple applications, and the clear under-sensor placement makes it easy to distinguish this product from an overpatch. Choose it for that specific layer in your CGM setup, and follow the clean, dry-skin application steps for a properly prepared placement.