A bulk liner for installation inside a flexible bulk container for flowable material formed from woven fabric and having a rectangular interior cross section when empty.
After filling, the strips retain the square shape of the container, and the absence of bridge panel seams reduces material leakage.

Flexible bulk containers have been used for receiving, storing, transporting and discharging flowable materials of all types. The containers are typically constructed from a woven fabric in a square or vertically rectangular shape with lift straps attached to each of the uppermost corners of the square or rectangle.

Flexible liners are inserted into the containers to prevent leakage from the containers of flowable materials having very fine particles, to prevent the interior surface of the containers from contacting the flowable materials to allow reuse of the containers with a variety of flowable materials without contamination from a prior use, to prevent contamination of the flowable materials by elements external to the container, and to prolong the life of the containers.