A softgoods seat covering convertible into vehicle extraction device for immobilizing a patient while still seated in the seat of a vehicle, and for safe extraction and transport thereafter. The device uses a plurality of inflatable panels enclosed within a woven cover and connected together by inflation tubing to an inflator for simultaneous or sequential inflation. In normal, pre-blast operations, the durable, uninflated device simply acts as the outer fabric of the seat back and seat cushion, with deployable structures folded/tucked behind the seat back and under the seat pan. Upon arrival of the medic, sections of the device are sequentially deployed through inflation and secured around the patient by wraparound straps to immobilize the patient in the sitting position, and to facilitate extraction and removal in a supine position. The device is intended to mitigate injuries/casualties caused by exposure to landmine or IED blasts.