Abstract: A thermally insulted container (101) for the transport of cargo (102), said container (101) comprising panels (103) comprising at least one outer layer/wall (104) and at least one inner layer/wall (105), between which layers/wall foam material (106) is arranged, and wherein the foam material is an essentially closed-cell foam material, said cells (107) enclosing at least two gases (108), said gases (108) having a value ? for thermal conductivity which is lower than that of atmospheric air, Hereby a container is obtained, whose insulating properties are good, while simultaneously the used materials are environmentally satisfactory, and wherein these insulating properties remain essentially intact for number of years.