Bold jumpsuits for every generation.

Hello Friend!

We’re Isabella and Rachel​: cousins, BFFs, and co-founders of Butter and Birthday Cake, our brand-new high-end jumpsuit line.

For as long as we can remember, we’ve shown up to family events in outfits that complemented each other without being identical. We’d laugh, take far too many photos, and over time, those outfits became little markers of different chapters in our lives.

Somewhere in the middle of all that, the nicknames arrived. When Butter was five, she decided “Butter” and “Birthday Cake” suited us perfectly. She was right. Our names stuck​ —​ and now they’re stitched into the heart of every jumpsuit we create.

To us, clothes are more than fabric. They tell stories. They create moments. That’s why we design high-quality, vintage-inspired jumpsuits for adults and kids​ —​ pieces that feel special, last beyond a single season, and are unlike anything you’ll find off the rack.

Our styles are made to go together without being exact matches​. They're perfect for mothers and daughters, aunts and nieces, friends who share a wavelength, or anyone who loves the idea of connection through style. And if you’re shopping for yourself, every jumpsuit is made to stand beautifully on its own.

We can’t wait to share them with you. Sign up below to be the first to know when they launch.

With love,
Butter & Birthday Cake