Jamison & Bexley Size Guide

Because baby sizing should be clearer than your toddler’s tantrum triggers.

We get it—shopping for your little one shouldn’t feel like guessing their Hogwarts house. That’s why we made a simple, scrollable size chart for all our current pieces (from newborn snuggles to full-on toddler zoomies). 

Keep in mind: Our items are designed for a little extra room to grow, because babies don’t ask for permission before leveling up in size overnight.

Sizing Tips (a.k.a. Real Talk):

👕 Between sizes? Size up, especially if your little one is blessed with thighs, bellies, or the ability to grow overnight like a sprout in sunshine.
👶 Big baby energy? Our rompers, sleepers, and tees are designed with stretch and comfort in mind—but sizing up never hurts if you're unsure.
🧼 Washing note: Items may shrink slightly with heat (we recommend low heat drying). If you love a roomier fit, hang dry or size up.