1. Keep Heat and Cold
Keep Heat and cold are the most basic functions of cooler bags. They are special bags with short-term heat preservation effect, which can keep cold and heat.

2. Durable
To have superior impact resistance, not easy to shatter under heavy pressure or impact, and will not leave scratches.

3. Seal
This is the first point to consider when choosing an insulation bag. Although different brands of products seal differently, airtightness is necessary for the long-lasting freshness of the food inside.

4. Preservation
The international airtightness measurement standard is evaluated by the moisture permeability test. The moisture permeability of high-quality thermal insulation bags is 200 times lower than that of similar products, which can keep food fresh for a longer time.