Posen teamed up with US store David's Bridal to create the range. There are classic floor-sweeping styles in ivory as well as a handful of elegant evening dresses in black and midnight blue.
"Each design in this collection depicts a romantic femininity, with silhouettes that embrace and enhance every woman's body while celebrating life's exceptional moments," he said.
In an interview with The Telegraph, Posen also revealed that his new dresses will come in an "array" of sizes, from 0 to 26.
The dresses are available at David's Bridal from 6 February, priced from £125 to £1,295. Like what you see? Take a look at the full collection below...