Quick answer

Sew the Luciole barboteuse by Marmaï Patterns: a baby romper with an ample bloomer, short sleeves, and an optional flat collar. Follow these steps for a smooth sew.

What makes the Luciole barboteuse special

The Luciole pattern features a loose bloomer cut that gives babies plenty of room to move, short sleeves for warm weather, and an optional flat collar that adds a charming detail. The pattern includes a button placket for easy dressing and diaper changes.

Because the fit is intentionally roomy, you may want to size down if your baby is between sizes or if you prefer a closer fit. The bloomer length can also be shortened for a more modern look.

Fabric and notions you will need

Choose lightweight woven fabrics like cotton lawn, voile, or seersucker for summer wear. You will need about 1 yard (0.9 m) of fabric for the main pieces, plus a small amount for the optional collar if you choose to add it.

Notions include matching thread, small buttons (about 3/8 inch or 10 mm) for the placket, and a buttonhole foot or hand-sewing supplies. A walking foot helps feed lightweight fabric evenly.

Step-by-step sewing instructions

  1. Cut out the pattern pieces: Lay out your fabric on a flat surface and pin the pattern pieces according to the layout guide. Cut out the front bodice, back bodice, bloomer front, bloomer back, sleeves, and optional collar pieces. Transfer all notches and markings. Use pattern weights instead of pins to avoid shifting lightweight fabric.
  2. Sew the button placket: Fold the front bodice placket along the marked line and press. Stitch the placket in place, then create buttonholes on the left side (for girls) or right side (for boys). Sew buttons on the opposite side. Test buttonhole size on a scrap piece of fabric first to avoid stretching the placket.
  3. Attach the optional flat collar: If using the collar, sew the two collar pieces right sides together along the outer edge. Clip corners, turn right side out, and press. Baste the collar to the neckline of the back bodice, matching notches. Use a scant 3/8 inch seam allowance so the collar sits neatly without gaping.
  4. Sew the shoulder seams and attach sleeves: Pin the front and back bodice at the shoulders, right sides together, and stitch. Then pin each sleeve into the armhole, matching the notch at the shoulder seam. Stitch and finish the seam with a zigzag or serger. Clip the armhole curve slightly before turning to reduce bulk.
  5. Sew the side seams and attach the bloomer: Stitch the side seams of the bodice and sleeves in one continuous seam. Then sew the bloomer front to the bloomer back at the side seams. Pin the bloomer to the bodice waistline, right sides together, matching notches and side seams. Stitch and finish. The bloomer is intentionally roomy; do not pull or stretch the fabric when pinning to avoid puckering.
  6. Finish the hem and leg openings: Hem the bottom of the bloomer and the sleeve cuffs by folding under twice and stitching. For the leg openings, you can use a narrow rolled hem or bias binding for a clean finish. Press all seams well. A rolled hem foot makes quick work of the narrow hem on curved edges.
  7. Add final closures and press: Sew buttons onto the placket opposite the buttonholes. Optionally, add a small snap at the crotch for easy diaper access. Give the entire romper a final press with a steam iron. Use a pressing cloth to protect buttons and delicate fabric from direct heat.

Pattern used in this guide

  • Luciole la barboteuse - Marmaï Patterns: The Luciole barboteuse pattern includes an ample bloomer, short sleeves, and an optional flat collar. The loose bloomer ensures freedom of movement, and the optional collar lets you customize the look for a dressier or simpler finish.

    Luciole la barboteuse - Marmaï Patterns

    Luciole la barboteuse - Marmaï Patterns