Michael Lauren Mackay Tank Dress in Brown. - size XS (also in ) Michael Lauren Mackay Tank Dress in Brown. - size XS (also in ) 94% rayon 6% spandex. Dry clean recommended. Unlined. Neckline cut-out detail. Jersey knit fabric. Raw cut hem. MLAU-WD261. ML8125 RSN. The designers behind Lauren Moshi take their comfortable pieces to a new level. With Michael Lauren, expect a range of lounge-worthy basics for the girl who likes to relax in style.