Large Vintage Plastic Coca Cola Cooler

I recently acquired this cooler when cleaning my recently deceased Aunt's home out. I don't remember it growing up as I did many of her things. Can anyone tell me anything about it? 70s, 80s or 90s perhaps? It's 25" wide x 13" deep x 14" tall. The lid hinges are marked, "Hinges made with DuPont ELVAX" and "650 ethylene-vinyl acetate copolymer resin". Thanks in advance for any information!