The Lullaby Club
GETTING DRESSED JUST GOT BETTER.
we've been thinking about your wardrobe.
A little wardrobe treat. Yours, obviously.
Designed for ultimate comfort, the Billie Shirt by The Lullaby Club features a relaxed, oversized fit that seamlessly transitions from bed to beach. Crafted from a premium 100% cotton blend, this lightweight and breathable piece is perfect for all-day wear, keeping you cool and comfortable.
Whether you're lounging at home, running errands, or styling it up for an effortless look, the Billie Shirt is the perfect wardrobe staple. The tie-front closure adds a stylish touch, while its versatile design makes it easy to dress up or down. Pair it with our Posey Pants for the ultimate laid-back yet put-together outfit.
Pair the Billie Shirt with the Posey Pants for a chic matching set, or style it with denim for a casual yet effortlessly cool look. Whether you're at home, out for coffee, or heading to the beach, this breathable, oversized shirt is a must-have in your wardrobe.

Garment Measurements
| XS | SM | ML | LXL | XXL | 3XL | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Length | 28" | 28.3" | 28.7" | 29.1" | 29.5" | 30.31" | 71 cm | 72 cm | 73 cm | 74 cm | 75 cm | 77 cm |
| Chest | 49.6" | 51.2" | 53.6" | 56" | 58.2" | 62.59" | 126 cm | 130 cm | 136 cm | 142 cm | 148 cm | 159 cm |
| Sleeve Length | 11.8" | 12.2" | 12.6" | 13" | 13.4" | 13.77" | 30 cm | 31 cm | 32 cm | 33 cm | 34 cm | 35 cm |
| Hem | 49.6" | 51.2" | 53.6" | 56" | 58.2" | 61.81" | 126 cm | 130 cm | 136 cm | 142 cm | 148 cm | 157 cm |
International Size Conversion
| Label | XS | SM | ML | LXL | XXL | 3XL |
|---|---|---|---|---|---|---|
| AU / NZ | 6–8 | 10–12 | 12–14 | 16–18 | 20–22 | 24–26 |
| UK | 6–8 | 10–12 | 12–14 | 16–18 | 20–22 | 24–26 |
| US | 2–4 | 6–8 | 8–10 | 12–14 | 16–18 | 20–22 |
| EU | 34–36 | 38–40 | 40–42 | 44–46 | 48–50 | 52–54 |
| On Label | XS | SM | ML | LXL | XXL | 3XL |
Select a size to see its exact garment measurements and what to expect from the fit on your body.
Sits beautifully on a smaller frame — relaxed through the chest with a gorgeous hem sweep.
Eased through the chest with a comfortable sleeve. Falls at a flattering length.
Our most popular fit. Generous through the body — effortless and flattering.
Relaxed and roomy with a generous sleeve and beautiful sweep. Wear it and own it.
Maximum ease and volume. A bold, confident silhouette that commands a room.
Generous and celebratory. Designed to be worn with total confidence and ease.
Grab a soft fabric tape measure. Stand naturally, feet together. Measure over underwear or a single lightweight layer for the most accurate results.
The Three Measurements That Matter
Place the tape close under the armhole at the fullest part of your bust. Measure from side seam, around and back to the same side seam.
Keep the tape parallel to the floor — snug but not tight.
Measure at the narrowest point — usually 2–3 cm above your belly button. Place the tape from side seam, around and back.
Exhale naturally before taking the measurement.
Place the tape approximately 20 cm below your natural waistline at the fullest part of your hips. Measure all the way around.
Stand with feet together for the most accurate result.
Still not sure on sizing? Our team knows every style — we're here to help.
Get In TouchWe partner with a small group of trusted factories in Guangzhou, China to bring our designs to life. Each piece is made with care by skilled makers who share our commitment to quality, comfort, and intentional fashion.