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What’s the Best Way to Store a Mylar Bivy for Longevity?

April 5, 2026

Quick Answer

Store a Mylar bivy in a dry, sealed plastic bag or container to protect it from moisture and abrasion, and consider folding it into a compact shape to prevent creases and punctures.

Storing in a Dry Environment

When storing a Mylar bivy, it’s essential to keep it away from moisture, as even a small amount of water can cause the material to degrade. Store the bivy in a dry, well-ventilated area, such as a closet or cupboard. Avoid storing it in a basement or attic, where humidity and temperature fluctuations can be extreme.

Proper Packaging and Handling

To prevent creases and punctures, consider folding the Mylar bivy into a compact shape before storing it. You can fold it in half or into a smaller triangle, depending on the desired level of compactness. When folding, use a gentle touch to avoid applying pressure that can cause creases or tears. Once folded, place the bivy in a sealed plastic bag or container to protect it from dust and abrasion.

Long-Term Storage Tips

If you plan to store the Mylar bivy for an extended period, consider adding a few desiccant packets or silica gel to the storage container to absorb any moisture that may be present. You can also store the bivy in a vacuum-sealed bag or container to prevent air from entering and causing the material to degrade. By following these tips, you can help extend the lifespan of your Mylar bivy and ensure it remains in good condition for future use.

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