Pinnacle ice cooler box with soft touch handle keeps cold upto 48 hours (eskimo green 4.5l.) pinnacle ice cooler box with soft touch handle keeps cold upto 48 hours (eskimo green 4.5l). technical specs: 1. double layer strong insulated body 2. a 20 mm polyurethane foam 3. tough & impact resistant exterior 4. ice box is fda approved and bpa-free and therefore safe to even store open food or fruits/veggies. basically, pinnacle prudence