Bella Dahl Button Down Tie Back Top in Ivory. - size S (also in ) Bella Dahl Button Down Tie Back Top in Ivory. - size S (also in ) Rayon blend. Hand wash cold. Button front closures. Back slit with tie detail. BLD-WS237. B2330 669 302. Los-Angeles based brand, Bella Dahl, designs ultrasoft essentials with a laidback, Southern California vibe. Modern silhouettes, textures, and unique wash treatments combine to achieve the perfect fit with an endlessly wearable feel. Each garment is hand-dyed and treated in Los Angeles to ensure the quality of each piece.