This is a sleeveless Tommy Hilfiger dress, shown from the back on a hanger. Key details:
Style: Sleeveless, round/scoop back neckline, A-line shape, knee-length
Pattern: Two-tone ditsy floral print — a lighter cream/white background with blue and red flowers on the bodice, transitioning to a darker navy background with the same blue and red floral pattern on the skirt
Colors: Navy, white/cream, red, and light blue
Closure: Back keyhole opening with a button/loop closure at the top
Lining: Navy interior lining visible
Brand: Tommy Hilfiger label visible at the back neckline