Tips
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Avoid excessive immersion: do not leave it in the water until it becomes overly swollen. If this happens, the gel may overflow. The cooler will continue to function as long as it retains most of the gel.
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Limit sun exposure: Do not expose the case to direct sunlight for long periods.
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Periodic checks: Check the case regularly to ensure it stays adequately hydrated.
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Proper storage: store the case in a cool, dry place when not in use.
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Cleaning the outer case: Simply wipe it with a damp cloth and let it dry. The wallet should not be put in the washing machine or dryer.