Collection: Cosette Maternity

Cosette Maternity designs dresses built to move with you through pregnancy, nursing, and beyond. Each piece is made in New York City from a Lenzing™ Modal and spandex blend, with hidden nursing access built into the design.

Yes. Cosette designs every dress to fit through pregnancy and hold up as an everyday piece well into postpartum, so it doesn't need to sit in your closet once your baby arrives.

We look for pieces that solve a real problem for parents, and Cosette does that for maternity dressing. Their dresses are polished enough for work or a night out, and functional enough for nursing, which fits the kind of curation we want in the Heyday edit.

We recommend starting with your pre-pregnancy size. The fabric offers generous, high-recovery stretch to grow with your bump, so if you prefer a more compressive fit, size down. Check the size chart on each product page for detailed measurements.

Size | Bust | Under Bust | Waist | Hip

XS | 30-33 | 25-28 | 31-34 | 34-36

S | 34-37 | 29-32 | 35-38 | 36-38

M | 38-41 | 33-36 | 39-42 | 38-40

L | 42-45 | 37-40 | 43-46 | 40-42

XL | 46-49 | 41-44 | 47-50 | 42-44