Cryogenic shipper

A shipper configured to retain a dewar for shipment, the shipper comprising:

• a base comprising an inner compartment wall defining an inner compartment to receive the dewar;
• and
• a lid selectably closable over the inner compartment to secure the dewar therein,
• wherein the base comprises a strengthening face opposite the lid, the strengthening face having a base floor parallel to the lid when the lid is closed and comprising an annular channel defining an annular bead of the base floor, the annular channel comprising:
• an inward bend face comprising a first curved bend of the strengthening face inwardly away from the base floor and into the inner compartment;
• wherein the first curved bend has a profile corresponding to a profile of a portion of the dewar, and
• wherein a distance between the dewar and the strengthening face measured in a direction normal to the strengthening face is a constant distance.

A shipper configured to retain a dewar for secure shipment, the shipper comprising:

• a base comprising an inner compartment wall defining an inner compartment to receive the dewar;
• and
• a lid selectably closable over the inner compartment to secure the dewar therein,
• wherein the base comprises a strengthening face opposite the lid, the strengthening face having a base wall parallel to the lid when the lid is closed and comprising an inset wall comprising a central region of the base surrounded by the base wall and inset toward the lid relative to the base wall, and
• wherein the inset wall spaces the dewar received in the inner compartment away from the base wall so that the base elevates the dewar away from the base wall;
• wherein a distance between the dewar and the strengthening face measured in a direction normal to the strengthening face is a constant distance.