The Ozark Trail 36 Can Leak Proof RF Welded Cooler is designed for serious outdoor fun. This hard-sided, rugged cooler features a heavy-duty, waterproof exterior that is resistant to mildew, punctures, and UV Rays and has a food-grade hard-liner interior. It comes equipped with a water-repellent, zippered pocket on the front and two mesh pockets and daisy chain attachments located on each side. With multi-layered high-performance thermal insulation, this cooler works to keep ice for days. For best results, pre-chill your cooler with ice the night before use. Using block will help to keep your contents cold as it melts as a slower rate than standard size ice cubes. A full cooler keeps the contents colder longer. You can freeze water bottles and as they thaw, you have drinking water. The Ozark Trail 36 Can Leak Proof Zipperless cooler is perfect for all your adventures