The feature of cooler bags?
Keep hot and cold:
Heat preservation and cold preservation is the most basic function of the heat preservation package. It is a special bag with short-term heat preservation effect. It can keep cold/heat preservation. The product heat preservation layer is pearl cotton + aluminum foil tin foil, which can provide good heat insulation effect.
It must have excellent impact resistance, not easy to break under heavy pressure or impact, and will not leave scratches.
seal: This is the primary consideration when choosing an insulation package. Although different brands of products have different sealing methods, excellent airtightness is a necessary condition for the long-lasting freshness of memory food.