The present disclosure is a lightweight, absorbent body bag. The body bag is portable and disposable. The body bag has a backing substrate, an absorbent body, a cover with a recloseable flap that can be opened and closed to permit a body to be placed within and removed from the body bag, and gripping devices along the edges to permit easy transportation. A thermal seal may be applied continuously along a perimeter of the body bag to create a water-resistant body compartment. The present disclosure also includes a method for using the body bag and a body bag kit.