The Eldra Bralette in Geometric Lace by Anine Bing. 

ANINE BING's Eldra Bralette is a stylish way to add a touch of black geometric lace to your wardrobe. It's both feminine and edgy, making it a versatile piece for any fashion-forward woman. Perfect for layering or wearing on its own, this bralette is a must-have for any Peggy Girl's wardrobe.