RARE Givenchy ostrich feather silver stud cotton tank S

Givenchy (from Riccardo Tisci days) ostrich feather dip-dyed in black w silver stud white cotton tank top in small. Perfect for festive holidays and new years!!!There is discoloration at armpits & slightly on inside (not visible from front) at neckline from makeup. I was paranoid abt cleaning & could whiten with oxiclean but holding feathers out; therefore, discounting price & letting someone else try because I have not worn in years. Label says dry clean. armpit to armpit: 16 1/2” shoulder to hem: 24 1/2” Purchased Barney’s NYC.