British riding habit: 1750-59: Women’s riding outfits, known as ‘riding habits’, of the 18th century adapted elements of men’s dress. This jacket of the 1750s is styled after a man’s coat, although it has been modified with a waist seam to fit over stays and a wide petticoat.
The Victoria and Albert museum dates this to app. 1864. See how it doesn't go down the hips very much? Hips and all points south were concealed under the hoop, so no need to rein them in. This was a period of much more comfortable corsets than before and after.