With the improvement of people's living standards, people are increasingly choosing to travel on holidays to relax themselves, take their babies with them has been the wish of many parents, however, bring their own food out of the heat preservation has become an important issue. Workers dining insulation is also the focus of attention, China's new generation of young people for food insulation products will be more and more strong demand, with the increase in market demand, the emergence of new insulation bag, to the public has brought great convenience.