YETI Hopper M30 Soft Cooler The new and improved Hopper® M30 continues to shine as a tough-as-nails soft cooler. Completely re-engineered with MagShield Access, the extra-wide mouth top stays open when needed, making it easier than ever to load and unload food and drink for weekend excursions. Equipped with a strip of ultra-strong magnets, the top seals tight and locks cold in, while the Quick-Release Buckles add an extra layer of protection. And like the rest of our Hopper® Soft Coolers, the Hopper M30’s built in Hitchpoint™ Grid lets you attach accessories like the Rambler® Bottle Sling and SideKick Dry® Gear Case for extra utility on the go. Features MagShield Access uses powerful magnets to create an ultra leak-resistant shield that stays open when you need it and seals closed with a gentle push. ColdCell™Insulation uses closed-cell foam technology to lock the cold in and keep your refreshments fresh. Our DryHide™ Shell is made from a high-density fabric that withstands punctures and UV rays. To help extend the life of the cooler, both the interior and exterior materials are treated to be mildew resistant.