Bobi Modal Jersey Ruched Mini Dress in Gray. - size XS (also in ) Bobi Modal Jersey Ruched Mini Dress in Gray. - size XS (also in ) 54% cotton 44% modal 2% spandex. Unlined. Ruched side seams. BOBI-WD1131. 576 26204. Bobi is an LA-based line of dresses and tees made from some of the highest quality jersey at an affordable price.