A tray made of cardboard, paperboard or other lightweight foldable sheet material and comprising one or more pockets for receiving products, the tray comprising: a top sheet defining one or more top sheet openings for the one or more pockets; and a bottom sheet attached to the top sheet and comprising one or more bottom sheet openings aligned with the top sheet openings; wherein the top sheet comprises one or more respective sets of top sheet flaps (28, 30, 32), each flap comprising a top sheet flap proximal panel (28P, 30P, 32P) hingedly connected to the top sheet about a respective top sheet flap proximal hinge line (36, 38, 40) defined at the respective top sheet opening, wherein each top sheet flap (28, 30, 32) is folded about the respective top sheet flap proximal hinge line (36, 38, 40) to extend through the bottom sheet opening such that the top sheet flap proximal panel (28P, 30P, 32P) thereof defines, at least in part, a side wall (66, 68, 70) of the pocket; the bottom sheet comprising one or more respective sets of bottom sheet flaps, at least one bottom sheet flap comprising a bottom sheet flap proximal portion hingedly attached to the bottom sheet about a respective bottom sheet flap proximal hinge line defined at the respective bottom sheet opening characterised in that at least one of the top sheet flaps (28, 30, 32) further comprises a top sheet flap distal panel (28D, 30D, 32D) hingedly attached to the respective top sheet flap proximal panel (28P, 30P, 32P) about a respective top sheet flap distal fold line (42, 44, 46), and in that the at least one bottom sheet flap further comprises a bottom sheet flap distal panel hingedly attached to the bottom sheet flap proximal panel about a respective bottom sheet flap distal fold line; wherein the bottom sheet flap is folded about the respective bottom flap proximal hinge line such that the bottom sheet flap proximal panel defines at least in part a pocket side wall, and the bottom sheet flap distal panel defines at least in part a base wall of the pocket; and wherein within each pocket, at least one top sheet flap distal panel (28D, 30D, 32D) is bonded, for example adhesively secured, to the bottom sheet flap distal panel. a top sheet defining one or more top sheet openings for the one or more pockets; and a bottom sheet attached to the top sheet and comprising one or more bottom sheet openings aligned with the top sheet openings; wherein the top sheet comprises one or more respective sets of top sheet flaps (28, 30, 32), each flap comprising a top sheet flap proximal panel (28P, 30P, 32P) hingedly connected to the top sheet about a respective top sheet flap proximal hinge line (36, 38, 40) defined at the respective top sheet opening, wherein each top sheet flap (28, 30, 32) is folded about the respective top sheet flap proximal hinge line (36, 38, 40) to extend through the bottom sheet opening such that the top sheet flap proximal panel (28P, 30P, 32P) thereof defines, at least in part, a side wall (66, 68, 70) of the pocket; the bottom sheet comprising one or more respective sets of bottom sheet flaps, at least one bottom sheet flap comprising a bottom sheet flap proximal portion hingedly attached to the bottom sheet about a respective bottom sheet flap proximal hinge line defined at the respective bottom sheet opening characterised in that at least one of the top sheet flaps (28, 30, 32) further comprises a top sheet flap distal panel (28D, 30D, 32D) hingedly attached to the respective top sheet flap proximal panel (28P, 30P, 32P) about a respective top sheet flap distal fold line (42, 44, 46), and in that the at least one bottom sheet flap further comprises a bottom sheet flap distal panel hingedly attached to the bottom sheet flap proximal panel about a respective bottom sheet flap distal fold line; wherein the bottom sheet flap is folded about the respective bottom flap proximal hinge line such that the bottom sheet flap proximal panel defines at least in part a pocket side wall, and the bottom sheet flap distal panel defines at least in part a base wall of the pocket; and wherein within each pocket, at least one top sheet flap distal panel (28D, 30D, 32D) is bonded, for example adhesively secured, to the bottom sheet flap distal panel.