Bella Dahl Long Sleeve Button Down in White. - size XS (also in ) Bella Dahl Long Sleeve Button Down in White. - size XS (also in ) 100% tencel. Front button closure. Button cuffs. Shirttail hem. Imported. BLD-WS308. B2978 691 302. 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.