Yeti Roadie 15 Cooler
Albeit an expensive and heavy option, Yeti coolers are widely considered to be the best coolers available. The Roadie 15 is the smallest cooler in the Roadie series, and won't let you down in terms of keeping your drinks and perishable goods cold for an unfathomably long time. Its polystyrene insulation layer is a whopping 5 cm thick - twice as thick as that of most coolers on the market. The lid design clasps shut and effectively seals items inside the cooler from outdoor heat. It is built extremely tough and sturdy enough to sit on or use as a little table during mealtime.