The insulation bag has five advantages: 1. It saves a lot of plastic bags and supports environmental protection; 2.2. Clean and sanitary. The thermal insulation bag itself is waterproof and oil-proof.Third, the heat preservation effect is good, when out of the meal, is still steaming, from the color and taste of the meal can achieve the ideal effect.In this way, the problem of working and eating can be easily solved and the chance of going out for a picnic can be increased.The insulation bag itself is low in price and can be used for many times. It can be purchased in the general market.There are large size and medium size insulation bags specially designed for motorcycle, bicycle and vehicle transportation. There are also sports backpacks, backpacks, professional gifts and product packaging bags, and leisure shopping bags for insulation bag design. Thermal insulation bags are developing in a more professional direction, and more and more bring the most affordable service for people's life.