Abstract: A sealed carton containing lading assembled from a pair of cooperating sheet members comprising a body blank and a cover sheet. The body blank comprises a generally U-shaped formation formed from paperboard or like relatively rigid but foldable material. The cover member is formed from a continuous rectangular sheet member of lightweight, highly flexible material which is substantially thinner than the body blank materail. The body blank has a plurality of hingedly connected flanges folded to positions normal to the panels thereof and the sheet member is folded into a complementary U-formation and matingly engaged over the body blank with marginal edges of the sheet member adhesively secured to said flanges to form the sealed carton around the lading.