Box liner used with Gel or water ice mats, have been designed & validated to keep your perishable products chilled below +5°C for 72 hours in the winter & 48 hours in the summer. They are fully validated over a realistic but very high standard laboratory controlled test & are a cost effective way of shipping your fresh or frozen food.
The bubbles and poly prevent conduction and convection heat transfer while the foil reflects 97% of radiant heat. Insulated Box Liners cost less than traditional foam insulation and takes up less space.