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Dexcom G7 Waterproof Overpatches: Best Options

Keep your Dexcom G7 secure through swimming, sweating, and showering with the best waterproof overpatches available today.

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MDS Diabetes Team
Β·6 min read
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Key takeaways
  • βœ“Extends sensor wear through water activities and heavy sweating
  • βœ“Available in many styles including medical-grade and decorative options
  • βœ“Easy to apply and compatible with sensitive skin formulas

Why You Need a Waterproof Overpatch for Your Dexcom G7

The Dexcom G7 is a remarkable continuous glucose monitor (CGM), but its adhesive patch can struggle to stay put during intense workouts, swimming sessions, or even a hot shower. Waterproof overpatches are thin, medical-grade adhesive covers that fit directly over your sensor, providing an extra layer of protection that keeps your device firmly in place for its full 10-day wear period.

Whether you are an athlete, a swimmer, or simply someone who sweats more than average, finding the right overpatch can make a significant difference in sensor longevity and overall comfort.

Top Waterproof Overpatch Options for the Dexcom G7

1. Skin Tac Wipes + Fabric Overpatches

One of the most popular combinations among the diabetes community is using Skin Tac adhesive wipes before applying a fabric overpatch. Skin Tac creates a tacky barrier on the skin that dramatically improves adhesion. Paired with a breathable, waterproof fabric patch, this duo can extend wear through multiple swimming sessions and high-sweat activities.

2. GrifGrips Extreme Hold Patches

GrifGrips are well-known in the CGM community for their strong hold and variety of fun designs. Their waterproof material is specifically designed for active users, and they come pre-cut to fit the Dexcom G7 perfectly. The edges are rounded to minimize peeling, and they are available in solid colors as well as playful patterns that appeal to both kids and adults.

3. Simpatch for Dexcom G7

Simpatch offers one of the most straightforward overpatch solutions on the market. These single-use patches are latex-free, waterproof, and sweat-resistant. They feature a precise cutout for the G7 sensor so you do not have to trim anything yourself. Many users appreciate how thin and discreet Simpatch products feel on the skin.

4. Pump Peelz CGM Tape

Pump Peelz specializes in decorative yet functional adhesive patches. Their CGM tape is waterproof and holds up well during water sports and vigorous exercise. If you want to personalize the look of your Dexcom G7 while keeping it secure, Pump Peelz offers hundreds of design options.

5. MDS Medical-Grade Overpatches

For those who want a reliable, no-frills medical-grade solution, the overpatches available through mdsdiabetes.com are worth exploring. MDS Diabetes offers a curated selection of CGM accessories designed with real patients in mind, including overpatches that prioritize skin-friendly materials and strong waterproof adhesion. Their product range is particularly helpful for users who have sensitive skin or have experienced reactions to standard adhesives.

Tips for Getting the Most Out of Your Overpatch

  • Prep your skin: Clean the application area with an alcohol wipe and let it dry completely before placing your sensor and overpatch.
  • Apply on dry skin: Never apply an overpatch while your skin is damp or sweaty, as this drastically reduces adhesion.
  • Smooth out air bubbles: Press firmly from the center outward to eliminate any bubbles that could allow water to seep underneath.
  • Trim if necessary: If your overpatch does not have a pre-cut sensor window, use small scissors to create a clean opening over the transmitter button.
  • Replace early signs of lifting: If edges start to peel, apply a small amount of medical adhesive or a secondary edge patch to buy more time.

Final Thoughts

Your Dexcom G7 is an investment in your health, and keeping it securely attached ensures you get accurate, uninterrupted glucose readings. With the right waterproof overpatch, you can swim, sweat, and shower without worrying about your sensor falling off prematurely. Try a few options to find the material and design that works best for your lifestyle and skin type.

References & Sources

Frequently asked questions

The Dexcom G7 is water-resistant up to 8 feet for 24 hours, but its adhesive can loosen with prolonged water exposure. An overpatch adds extra security during swimming or intense activity.
Editorial note
This article is for educational purposes only and does not constitute medical advice. Always consult your healthcare provider before making changes to your diabetes management. Last reviewed: July 15, 2026 by the MDS Diabetes editorial team.
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