Triangular shipping container with polygonal inner support

An elongate structure comprising:

• a hollow outer portion formed of sheet material;
• and
• a hollow inner portion formed of sheet material;
• wherein the hollow outer portion and the hollow inner portion are each formed from separate, single pieces of sheet material,
• wherein the hollow outer portion includes at least a first outer side surface that defines a first plane, a second outer side surface that defines a second plane, and a third outer side surface that defines a third plane,
• wherein the first plane intersects with the second plane at a first dihedral angle, the second plane intersects with the third plane at a second dihedral angle, and third plane intersects with the first plane at a third dihedral angle,
• wherein the sum of the first dihedral angle, the second dihedral angle and the third dihedral angle is about 180°,
• wherein the hollow inner portion is disposed within the hollow outer portion,
• wherein the hollow inner portion comprises a plurality of elongate panels that cooperate so as to define an inner hexagonal channel,
• wherein the hollow inner portion contacts a first inner side of the hollow outer portion opposite the first outer side surface, a second inner side of the hollow outer portion opposite the second outer side surface, and a third inner side of the hollow outer portion opposite the third outer side surface, and
• wherein one of the plurality of elongate panels of the hollow inner portion extends between the first inner side of the hollow outer portion and the second inner side of the hollow outer portion so as to define a first hollow inner triangular channel, and another one of the plurality of elongate panels of the hollow inner portion extends between the second inner side of the hollow outer portion and the third inner side of the hollow outer portion so as to define a second hollow inner triangular channel.