"This limited edition Baby Wildlife Warrior range means so much to us, we hope you love it too," she said of the clothing range, which includes onesies, hats and bibs printed with pictures of Australian wildlife as well as wooden ornaments with sweet messages.
The announcement comes after fans began to speculate that Irwin and Powell had already welcomed their daughter in light of their unusual social media activity of late.
While photos of Irwin's growing bump had been a regular feature on her Instagram account, last week, the posting ceased, leading to a rumour frenzy.
The first curious post was a "bump update" posted on Irwin's page, which eagle-eyed fans noted may have been taken a month ago given Powell, 24, was seemingly wearing the exact outfit as he was pictured in on February 19, down to his socks and wristwatch.
Furthermore, rather than sharing a new image on Sunday, Irwin posted a black and white throwback photo that had previously appeared on her husband's Instagram.
And on Monday, further fuelling the rumours, she followed up the post with an image of a possum wrapped in a blanket.
Bindi and Chandler announced the exciting baby news in August, and revealed the following month they were expecting a daughter.
Since then, Bindi has been giving her fans regular updates of her baby bump, and the nursery she and Chandler have set up in preparation.
Most recently, the young wildlife star told The Bump that they've been drawing inspiration from her and Chandler's ancestry when it comes to what to name their little "wildlife warrior princess".
"We are waiting to meet her before we decide on a name. We want to hold her and make sure the name that we choose fits her perfectly," she shared.
"We have been looking through family history on both my side and Chandler's side for family name inspiration. Once she arrives I think we'll know exactly what to name her."
