Vintage Givenchy Large monogram top

Givenchy by Chesa monogram shirt sleeved top. Embroidered GG in white on black soft super stretchy knit. Rare. Collaboration from 70s and 80s. Excellent condition. Please see pictures for measurements and details. You will not see another one. Awesome street ware look with boyfriend jeans. Accepting reasonable offers. No size tag but it is almost OS since it is so stretchy. I would say it is a large. Looks like Gucci too.