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    Home FreeStyle Libre 3, 3 Plus & Duo CGM Underpatch | Skin Barrier & Underlay
    FreeStyle Libre 3, Libre 3 Plus and Libre Duo skin barrier underpatches for CGM adhesive protection
    FreeStyle Libre 3, Libre 3 Plus and Libre Duo CGM underpatch skin barrier for sensor adhesive protection
    FreeStyle Libre 3, Libre 3 Plus and Libre Duo skin barrier underpatch for CGM adhesive protection
    Freedom Bands for Diabetics QR code for Freestyle Libre 3 product instructions

    Allergy Underlay Barrier Patch

    FreeStyle Libre 3, 3 Plus & Duo CGM Underpatch | Skin Barrier & Underlay
    $12.95 $19.95FSA/HSA eligible
    FreeStyle Libre 3, Libre 3 Plus & Libre Duo CGM Skin Barrier UnderpatchCompatible with FreeStyle Libre 3, FreeStyle Libre 3 Plus and FreeStyle Libre Duo.Freedom Band®...
    Choose your options Select CGM, Barrier Material, Quantity
    1CGM
    Freestyle Libre 3
    Selected cgmFreestyle Libre 3
    2Barrier Material
    3Quantity
    Your selection Freestyle Libre 3 / White Polywoven / 10 Count
    Total$12.95
    FreeStyle Libre 3, 3 Plus & Duo Sensor Guard 2-Pack | Flex Shield Swipe to choose a color
    Black Matte Onyx / Black Matte Onyx / 2 Premium : White Hypoallergenic$14.95
    Pay with an eligible FSA or HSA card How it works

    Available during checkout.

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    Lifetime Warranty
    Fast Shipping
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    Product details

    FreeStyle Libre 3, Libre 3 Plus & Libre Duo CGM Skin Barrier Underpatch

    Compatible with FreeStyle Libre 3, FreeStyle Libre 3 Plus and FreeStyle Libre Duo.

    Freedom Band® CGM underpatches are applied beneath the compatible CGM adhesive to create a physical skin barrier between the device adhesive and skin. Also commonly described as an underlay or underlay patch, the underpatch goes on first, before the sensor adhesive. Unlike an overpatch, it sits beneath the compatible CGM adhesive.

    Libre CGM Underpatch, Skin Barrier & Adhesive Barrier

    • Compatible with FreeStyle Libre 3, Libre 3 Plus and Libre Duo
    • 2-inch skin barrier patch
    • White polywoven material
    • Available in 10 Count and 20 Count packs
    • Designed to sit beneath the CGM adhesive

    Underpatch vs. Underlay

    Underpatch and underlay are commonly used terms for a barrier patch worn beneath compatible CGM adhesive. Freedom Band® underpatches provide a physical adhesive barrier between the compatible device adhesive and skin.

    Add an Overpatch for Extra Security

    For additional adhesive security and protection during daily activity, pair your Freedom Underpatch™ with a compatible Freedom Overpatch™. The Underpatch sits beneath the compatible device adhesive as a skin barrier, while the Overpatch is worn above the device to help provide additional hold and coverage.

    Shop Libre 3 & Libre 3 Plus Overpatches →

    Helpful Underpatch Resources

    How to Apply Your Freedom Underpatch™

    See how the underpatch is positioned and applied beneath compatible CGM adhesive before sensor application.

    View Application Instructions →

    Freedom Patch™ Material & Skin-Contact Data

    Learn more about Freedom Patch™ materials, skin-contact information, supplier biocompatibility testing, adhesive composition, breathability and important limitations.

    Read Material & Skin-Contact Data →

    This accessory is a physical skin-barrier patch and does not replace or modify the CGM sensor.

    Complete your protection

    Frequently bought together

    Compatible extras chosen for this device
    Freestyle Libre 3, 3 Plus & Duo Complete Protection Bundle
    Optional Freestyle Libre 3, 3 Plus & Duo Complete Protection Bundle
    $49.99
    Freestyle Libre 3, 3 Plus & Duo Freedom Band CGM Armband | 4–26" Adjustable Band
    Optional Freestyle Libre 3, 3 Plus & Duo Freedom Band CGM Armband | 4–26" Adjustable Band
    $19.95
    FreeStyle Libre 3, 3 Plus & Duo Sensor Guard 2-Pack | Flex Shield
    Optional FreeStyle Libre 3, 3 Plus & Duo Sensor Guard 2-Pack | Flex Shield
    $14.95

    Customer spotlight

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    See how customers use Freedom Band products to protect their devices and live more confidently every day.

    Trusted by the Freedom Band family
    Back to Libre 3 & Duo CGM Underpatch Skin Barrier

    Lifetime Warranty

    Freedom Cases & Guards are backed for life. Warranty details

    Easy Returns

    Clear, straightforward return support. Return policy