H line Dresses Shop The Largest Collection ShopStyle The H Line was one of the silhouettes introduced by Christian Dior, premiered for his Fall Winter Haute Couture collection in 1954. The garments were shaped in a straight line, as the letter 'H' The H Line was one of the silhouettes introduced by Christian Dior, premiered for his Fall Winter Haute Couture collection in 1954. The garments were shaped in a straight line, as the letter 'H' BABEYOND Classic Sleeveless Low Waist 1920s Sequin Dress, Loose H Line Roaring 20s Gatsby Day Dress, Sage, Size 4