Bobi Date Night Rib Dress in Charcoal. - size M (also in XS,S) Bobi Date Night Rib Dress in Charcoal. - size M (also in XS,S) 80% modal 20% poly. Unlined. Ribbed fabric. Imported. BOBI-WD1289. 569-84004. Bobi is an LA-based line of dresses and tees made from some of the highest quality jersey at an affordable price.