Sticking to muted shades of black, olive green and white — with touches of red and pale pink! — the collection includes a mix of everything from comfy track pants and graphic tees to belts and dainty dresses.
Want all the latest pregnancy and birth announcements, plus celebrity mom blogs? Click here to get those and more in the PEOPLE Babies newsletter.
RELATED VIDEO: Kim Kardashian West & Kanye to Release New Children’s Clothing Line
Kardashian West, 36, tweeted Thursday about her and her husband’s logic behind the venture, writing, “For the past few years Kanye and I have made almost all of our kids clothes and we have collaborated on a new kids line!”
“TheKidsSupply has been what we’ve been working on for a long time. I’m so excited about this!” she added in another tweet about herself and West, 39.
FROM COINAGE: Vacation Like a Kardashian: Here’s How Much It Will Cost You
The reality star gave her Snapchat followers a sneak peek of the collection in February, sharing a clip of 3½-year-old North modeling some of the bright yellow-pieces: a sequined dress and matching shearling coat.
“Northie picked out the colors and the fabric,” Kardashian West could be heard saying in a second video.
The couple’s new line is available now at TheKidsSupply.com, with pieces retailing from $22 to $240.