There is no additional stretch or flex in fabric.
Flaws - No major flaws seen upon inspection (such as no noted spots, stains, holes or tears, extreme pilling, extreme fading, or extreme wear, no missing buttons or broken fasteners).
Measurements - See photos. Used sizing can vary, even on brands you know, due to previous wear or laundering so please double check before ordering.
Happy to answer any other questions you may have, just message me :)