The high street favourite's new plus size fashion range comes in sizes 18 to 24, comprising of pieces from all areas of its main collection
The 75-piece line, which launches online and in stores on 9 March, is modelled by plus size supermodel Candice Huffine - who revealed she is a massive fan of the brand.
"It's clear from the designs that they have been made to suit a curvy woman's body," she said of the new range, which includes party outfits, workwear, core basics and denim.
The 31-year-old model cited the lace-up body suits, bardot dress and printed wide leg trousers as her favourite pieces in the collection.
She also shared her surprisingly simple beauty secrets: "drink lots of water, don't sleep in your makeup, moisturise, don't over-pluck your eyebrows and always smile."
Huffine, who counts Carine Roitfeld as her style icon, said she hopes her career in front of the camera will "encourage women to love and be themselves."
"I believe we’re in a new era in fashion where all different kinds of people are being accepted and appreciated," she said.
See the full shoot - and get a sneak peek of the range - in our gallery below. And don't forget to head over to RiverIsland.com to shop the collection on 9 March.