Vehicles including collapsible cargo containers that collapse beneath tumble seats and methods of collapsing collapsible cargo containers beneath tumble seats are disclosed. A vehicle includes a vehicle floor, a tumble seat pivotably coupled to the vehicle floor, and a collapsible cargo container attached to the vehicle floor and attached to the tumble seat. The tumble seat is pivotable from a tumble-forward position to an upright seating position. When the tumble seat is pivoted from the tumble-forward position to the upright seating position, the collapsible cargo container collapses from a cargo storage configuration to a collapsed configuration beneath the tumble seat.