Hopper Flip 18The weekend is young, so pack up your durable, well insulated YETI Hopper Flip 18 soft cooler and head for the hills. It is sized to accommodate the provisions you need for a weekend expedition. Waterproof, tough as nails DryHide shell stands up to rough use in the wild with resistance to punctures, mildew and UV rays ColdCell closed cell rubber foam offers superior insulation over ordinary soft coolers Liner is made of FDA approved food grade