Wedding Guest Dress
"So happy I purchased!! The quality is amazing and love that you can customise the fit of the top section as I have a smaller top frame than my hip area. So flattering and excited to wear in Greece for a family wedding!"
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Size guide
Our size guide is based on the body measurements below and should be used as a guide only.
| SIZE | AUS | US | UK | ||
| XXS | 4 | 0 | 4 | ||
| XS | 6 | 2 | 6 | ||
| S | 8 | 4 | 8 | ||
| M | 10 | 6 | 10 | ||
| L | 12 | 8 | 12 | ||
| XL | 14 | 10 | 14 | ||
| XXL | 16 | 12 | 16 | ||
| 3XL | 18 | 14 | 18 | ||
| 4XL | 20 | 16 | 20 | ||
| 5XL | 22 | 18 | 22 |
*please allow 1- 2 cm tolerance with measurements
If you would like further assistance with sizing, our customer service team are more than happy to help! Please contact us here
Couldn't load pickup availability
Australian Policy:
Within 7 Days: Refund or Credit +10%
Within 8-21 Days: Store Credit
US Policy:
Within 30 Days: Store Credit
Alternate Bridal Policy:
Order 3 or more dresses from our Bridesmaid collection in one transaction, return for a full refund within 30 days of delivery (postage excluded).
Click here for further information on our Alternate Bridal Policy.
Items marked as "Final Sale" remain subject to our standard Final Sale policy and cannot be returned or exchanged.
For all information regarding our returns policy, please visit -www.billyj.com.au/pages/returns
Australian Orders:
Free standard delivery within Australia for all orders over AUD $150.
$9.95 AUD Standard delivery for orders under AUD $150
$14.95 AUD Express Shipping for orders under AUD $150
$5 AUD Express Shipping for orders over $150
USA Orders:
$15 USD for orders to the US under $150 USD.
Prices inclusive of Duties. Taxes calculated at checkout.
International Orders:
Billy J delivers internationally. For more info on delivery locations click here.
Please note: Express shipping timeframes do not take into account the packing time at our warehouse. All orders are prepared and shipped within 1-2 business days of order placement (excluding weekends, public holidays and peak periods).
Overall rating: 4.9186993 / 5 from 123 reviews.
The Sia Maxi Dress in Yellow is praised for its high-quality material, beautiful color, and perfect fit. Customers have noted the dress's amazing and true-to-size fit, along with its gorgeous and thick material. The dress's stunning yellow color is also frequently highlighted in reviews.
Review topics: ["size","fit","straps","colour","length","fabric","material","feels","quality","looks","style","dress","cut","measurements","balance","back","texture","wear","shipping","chart","front","event","option","bottom","underwear","adjusting","silk","clothes","places"].
"So happy I purchased!! The quality is amazing and love that you can customise the fit of the top section as I have a smaller top frame than my hip area. So flattering and excited to wear in Greece for a family wedding!"
"This dress was perfect for the wedding I got it for. I’ll definitely keep this in my rotation for future weddings, gorgeous butter yellow, very flattering, I loved the feature that snatches waist as much or little as you adjust it to. 10/10 quality"
"I ordered several dresses and they’re all absolutely lovely! They fit well, even in terms of length, even though I’m quite short (1m57). The fabric of this dress is pretty and comfortable to wear."
"I wore this dress to a wedding and got so many compliments. The backless part is so flattering and the tightness is adjustable! The color is also very pretty. I am 5’1, 118lbs and got a size 4. Used some hemming tape so it was easy to shorten the length."
"Adored this dress, fit perfectly and the most gorgeous colour"
"Loved. The adjustable straps help with making it fit perfectly."
"Stunning! Love the colour. No notes."
"Adored this dress, fit perfectly and the most gorgeous colour"
"This dress is absolutely gorgeous. The butter yellow color is the perfect balance of bold and unique, yet elegant and classy. Luckily it fit like a glove right out of the package for me. I love the beautiful open-back and the subtle mermaid style bottom. I've had such good luck with Billy J dresses in general - it has become my tried & true place to shop for wedding guest dresses and other semi-formal/formal events. This dress was yet another success story for me and I'm so excited to wear it!"
"This dress is absolutely gorgeous. The butter yellow color is the perfect balance of bold and unique, yet elegant and classy. Luckily it fit like a glove right out of the package for me. I love the beautiful open-back and the subtle mermaid style bottom. I've had such good luck with Billy J dresses in general - it has become my tried & true place to shop for wedding guest dresses and other semi-formal/formal events. This dress was yet another success story for me and I'm so excited to wear it!"