Birdie Jay Glass Onion Costume Guide

What You’ll Need

Birdie Jay steps into Glass Onion dressed for maximum drama, opening with a voluminous rainbow-striped halter dress that catches the sea breeze the moment she lands on the Greek dock. Her styling is pure resort excess, defined by oversized proportions, stacked metallic jewelry, and loud color choices that announce her presence before she speaks a word.

Recreating her wardrobe comes down to nailing two distinct silhouettes from the film: the flowing daytime arrival ensemble anchored by dramatic sun accessories, and the slinky, deep-cut evening jumpsuit she changes into once the murder mystery weekend gets underway.

The Rainbow Arrival Dress

The centerpiece of Birdie’s arrival is the tiered halter maxi dress featuring wide horizontal bands of orange, yellow, pink, turquoise, and violet. The original garment has a relaxed empire cut that falls loosely around the body, with lightweight chiffon or georgette giving it continuous movement when walking. Either the Striped Rainbow Dress or the Rainbow Maxi Dress serves as a solid base for this outfit, depending on whether you prefer a structured striped pattern or a softer, sweeping skirt silhouette.

If the hemline runs long on your frame, hem it slightly above flat-sandal height rather than letting it drag on convention floors or outdoor pavement. The open halter neckline leaves the upper chest and shoulders completely exposed, so plan your undergarments accordingly with adhesive cups or a plunge-style strapless bra.

Dockside Accessories and Sun Protection

Birdie balances the busy print of her dress with exaggerated resort accessories. The Oversized Straw Hat needs an extremely wide, floppy brim to achieve her silhouette; if the brim droops too far over your eyes, you can run a length of millinery wire along the outer edge or steam the weave into shape from underneath. Pair the hat with the Oversized Cat Eye Sunglasses, opting for thick tortoise or neutral frames that flare outward at the temples.

Jewelry during this scene stays heavy on warm metallics. Layer the Gold Feather Necklace against the open chest, and stack multiple bands across both hands using the Gold Stacking Rings. Add the Blue Gem Statement Ring on an index or middle finger to echo the blue notes in the skirt stripes.

Evening Dinner Jumpsuit

For the evening scenes at the villa, Birdie swaps breezy daylight colors for a sleek, sultry silhouette in the Deep V Burgundy Jumpsuit. This piece features a daring plunge neckline, cinched waistline, and relaxed wide-leg trousers that swish as she paces around the parlor.

Because the neckline plunges nearly to the navel, secure the front lapels directly to your skin with double-sided fashion tape before leaving your changing area. The rich wine fabric pairs cleanly with the same gold cocktail rings and bold hand jewelry from the daytime look, giving you flexibility to switch between outfits during an event.

Hair, Makeup, and Nails

Her blonde hair is worn down in loose, windblown beach waves with natural texture and a soft center part. If you are styling a lace front wig, run a wide-barrel curling wand through the mid-lengths, brush through the curls, and mist with light texturizing spray to keep the strands soft rather than stiffly set.

The makeup contrasts sharply between the two scenes. For the arrival dress, bring in vibrant warmth across the lids using the Rainbow Eyeshadow Palette, blending sunset hues along the crease while keeping the skin bronzed and dewy. Finish the hands with bright Orange Nail Polish, painted in clean, glossy coats. For the evening jumpsuit, swap to the Dark Wine Lipstick, tracing a defined lip line to match the deep burgundy fabric of the outfit.