Dona Jo Women's Match TankThe Match tank is comfortable and functional for long tennis matches. We used our signature fabric produced with biodegradable nylon (6. 6), a Brazilian pioneer technology in the world. This yarn has been enhanced to allow clothing to quickly decompose after disposal in landfills. The breakdown that before took decades to occur in nylon (polyamide generic name) now 50% already happens in the first year and it is fully decomposed after three years. It