An expansion fold is an additional expansion option on a suitcase that allows it to offer more volume. Essentially, it is an additional strip of fabric located between the suitcase lid and the suitcase bottom that can be extended when needed.
When not in use, the expansion fold lies flat and does not add any extra volume to the suitcase. However, if more space is needed in the suitcase, the zipper on the expansion fold can be opened and the fabric strip extended. This way, the volume of the suitcase can be increased by a few centimeters.
It is important to note that using the expansion fold can increase the overall weight of the suitcase and can also lead to the suitcase being unevenly loaded. Therefore, it is important to only use the expansion fold when absolutely necessary.
