Petrol is a dark teal color.
Modal is a very high quality rayon that is made from birch fibers. Beautiful drape, great for dresses, tops, t-shirts and flowy skirts. 'Super modal' is heavier weight than the 'heavy modal' and has more spandex (8% vs 6%)
Extra heavy weight modal spandex, 220 GSM
95% modal / 5% spandex
Stretch% : 75% Horizontal 50% Vertical.