Growth Spurt Organic Muslin Onesie

The little details that make all the difference.

The Growth Spurt Pocket Onesie.

Made from 100% organic muslin cotton, this onesie is as thoughtfully designed as it is comfortable. A charming belly pocket, button-detailed straps, and delicate lace trim give it a subtle finish that stands out — while the pure organic muslin keeps it gentle, breathable, and cloud-soft against the most sensitive newborn skin. The kind of piece that looks like you put in effort, even on the days you didn't.

• 100% organic muslin cotton — pure, breathable, and hypoallergenic for delicate baby skin
• Belly pocket — a sweet, functional detail she'll grow into
• Button-detailed straps — charming and easy for dressing and changes
• Delicate lace trim — a boutique finish that feels truly special
• Machine washable — organic quality, real-life easy

Made with care. Delivered the same way.

Every Growth Spurt Pocket Onesie is inspected before it leaves us — stitching, lace, buttons, fabric — because a piece this detailed deserves to arrive perfectly.