Ashley Graham just became the first plus-sized model to grace the cover of Sports Illustrated.

Sports Illustrated has just revealed the cover star for it’s 2016 swimsuit issue — actually, this year, they’ve crowned three.

It’s the first time, in more than 50 years, that the magazine has multiple cover models, but more than that, it’s also the first time a plus-sized woman has been featured on the front page.

That woman is 28-year-old Ashley Graham, a size 16 model and outspoken advocate for body positivity.

If you don’t know her, you can check out this clip from her 2015 Tedx Talk.

Graham posted a snap of the cover on her Instagram, saying she was “truly speechless”.

“This cover is for every woman who felt like she wasn’t beautiful enough because of her size,” she wrote.

“You can do and achieve anything you put your mind to.”

Truly speechless!!! This cover is for every woman who felt like she wasn’t beautiful enough because of her size. You can do and achieve anything you put your mind to. Thank you so much to the entire @si_swimsuit team! I’m so excited to be a part of your family. I love you all!!! #siswim #beautybeyondsize

A photo posted by A S H L E Y G R A H A M (@theashleygraham) on Feb 13, 2016 at 9:05pm PST

By having multiple covers, the magazine is hoping to represent three different body types, with Graham joining American model Hailey Clauson and UFC fighter Ronda Rousey. 

It might not seem like a big deal, but this small celebration of diversity is pretty revolutionary for Sports Illustrated.

“Every single woman that is booked for this magazine is cover worthy,” Assistant Managing Editor MJ Day explained.

“All three women are beautiful, sexy and strong. Beauty is not cookie cutter. Beauty is not ‘one size fits all.’ Beauty is all around us and that became especially obvious to me while shooting and editing this year’s issue.”

You can check out the three women and their three covers below.