Monti Coolers The Mayfly Backpack Cooler

The Mayfly is designed for portability and space-saving, weighing only 12 ounces. Unlike hard-sided coolers, it is flexible and can be compressed into its own stuff sack when not in use, making it ideal for travel or hiking where bulk is a concern.

The Mayfly is built with waterproof YKK zippers and high-quality ripstop nylon, which are designed to contain moisture. While it is highly resistant to leaks, it is best practice to keep the cooler upright to ensure the seal remains effective.

Yes, the 14L capacity is specifically sized to hold 15 standard beverage cans. Keep in mind that adding ice will reduce the available space for cans, so you may need to adjust your load depending on how much cooling power you need.

The hydrophobic synthetic insulation is rated to keep contents cold for up to 30 hours. Performance can vary based on the ambient temperature and how often you open the cooler, but it is engineered to handle a full day of activity.

The Mayfly is designed with lightweight materials and comfortable straps to minimize bulk. Because it is a soft-sided cooler, it conforms to your back, though it is best to pack heavier items at the bottom to maintain a balanced feel.

Because of the hydrophobic synthetic insulation and ripstop nylon, you can easily wipe down the interior with a damp cloth and mild soap. Ensure it is completely dry before folding it back into its stuff sack to prevent any mildew.