Which picnic incubator is the best?

Our family bought an outdoor brand called "Leyou" from the mall, and I think it's pretty good.

What we bought is a two-person set, which looks like a small orange-red schoolbag and is carried on both shoulders. The small bag on the front can be used to store cutlery, and the large bag can be used to store food. The thermal insulation effect is okay, and there will be no problem for half a day. However, I don’t know how it will be when it’s cold. I haven’t used it when it’s cold.

The price is a bit expensive. It costs more than 300 yuan after 10% off. It comes with a set of tableware, a cup, a cutting board and a bottle opener. But the quality is good, mainly because it looks beautiful.