Aritzia Babaton Sculpt Knit Bustier Tank Corset 2XS Black Worn twice, like new This is a fully fashioned tank top with a double square neckline and bustier-inspired seaming details. It's made with Sculpt Knit — Babaton’s signature figure-smoothing yarn. The perfect amount of stretch hugs in the right places to shape and sculpt your form. This version is constructed using a Half Milano stitch for structure and a flat, dense feel.