Boa Rib Tank in BlackSometimes the simplest pieces are the ones you reach for the mostand this one earns its keep. The Boa Rib Tank by Z Supply is that easy, everyday staple with just enough detail to make it feel a little special. Made from a soft, lightweight ribbed cotton, it hugs just right without feeling tight. The classic crew neckline and wide straps keep it timeless, while the delicate eyelet trim along the edges adds a subtle feminine touch that sets it apart