The Highlander 30-quart gray cooler from Mammoth Coolers offers exceptional performance. It’s inner and outer laminated with high-density nylon with thermoplastic polyurethane and has an EVA-molded bottom and top that are thick, durable and waterproof. It’s puncture- and tear-resistant with a waterproof zipper that is airtight and leakproof and an antimicrobial liner that resists mold and mildew. Measures 18” x 10”.