THIRD FORMHidden Gem Tank Maxi Dress
$310.00$360.00
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Black sleeveless maxi dress with V-neck and centered button-front placket
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  • Black sleeveless maxi dress with V-neck and centered button-front placket
  • Black sleeveless maxi dress back view with simple shoulders and subtle side ruching
  • Black tank maxi dress with V-neck, sleeveless cut, and button-front ruching
  • Black sleeveless tank dress close-up: V-neck and button-front placket with light buttons
  • Black sleeveless maxi dress with V-neck and vertical ruched placket with buttons
  • Black sleeveless maxi dress side view with V-neck and button-front detailing
  • Black sleeveless maxi dress with V-neck and centered button-front placket
  • Black sleeveless maxi dress back view with simple shoulders and subtle side ruching
  • Black tank maxi dress with V-neck, sleeveless cut, and button-front ruching
  • Black sleeveless tank dress close-up: V-neck and button-front placket with light buttons
  • Black sleeveless maxi dress with V-neck and vertical ruched placket with buttons
  • Black sleeveless maxi dress side view with V-neck and button-front detailing
Hidden Gem Tank Maxi Dress
THIRD FORM

Hidden Gem Tank Maxi Dress

$310.00
$310.00 $360.00
14% OFF · Save $50.00

Buy now pay later options available at checkout

True to size · Bamboo stretch knit · Keyhole cut-out maxi

SIZE

Third Form Size Guide

AUS / UK Size EUR Size US Size Bust (CM) Waist (CM) Hip (CM)
6 / XS 34 2 80 63 90
8 / S 36 4 85 68 95
10 / M 38 6 90 73 100
12 / L 40 8 95 78 105
6/XS
8/S
10/M
12/L

Model is 177cm (5'10") and wears AU8/S.
Same day dispatch before 2pm
Free AU shipping over $200
Easy 14 day returns

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Sydney? Pick up in 2 hours.

Alexandria NSW boutique · ready in 2 hours

VIEW STORE INFORMATION

520 Botany Road
Alexandria NSW 2015
10am - 4pm · Monday to Friday
+61 431 133 529

Sculpted slim-fit maxi silhouette.

Designed for evening events, occasion dressing, and elevated after-dark wear.

  • True to size with slim fit through body and hips
  • Maxi length (136cm at AU8)
  • Keyhole cut-out with soft gathering detail
  • Five custom-cut organic stone embellishments
  • Lightweight bamboo stretch knit
  • Soft-touch finish
  • Shoulder width: 35cm at AU8
MODEL MEASUREMENTS
  • Wearing AU8/S
  • Height: 177cm (5'10")
  • Waist: 65cm
PRODUCT DESCRIPTION

The Third Form Hidden Gem Tank Maxi Dress in Black is a sculpted maxi dress designed for evening events, occasion dressing, and elevated everyday wear. Cut from a soft bamboo stretch knit, this black maxi dress contours the body through a slim, body-skimming silhouette that finishes at the floor.

A central keyhole cut-out is finished with soft gathering across the front, while five custom-cut organic stones anchor the design with quiet sculptural detail. The lightweight stretch fabrication moves easily through the body, making it ideal for long-event wear. Discover more sculpted silhouettes in our Maxi Dresses edit or browse the full Third Form collection.
FABRIC COMPOSITION
  • 92% Bamboo
  • 8% Spandex
SHIPPING & RETURNS

Fast Dispatch

Orders placed before 2pm (Sydney time) are dispatched the same day.

Same Day Delivery (Sydney Metro)

Available on eligible orders placed before 11:30am Monday–Friday.

Australia Shipping

Free standard shipping on orders over $200

Free express shipping on orders over $400

International Shipping

Rates calculated at checkout based on location.

Easy Returns

Change of mind? We offer easy returns in line with our policy.
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Black sleeveless maxi dress with V-neck and centered button-front placket
THE DESIGNER

THIRD FORM

Third Form is a Sydney label started in 2014 by Merryn Kelly, built on a simple idea: sharp minimalism with just enough edge to keep it interesting. Expect clean lines, considered cuts and a palette that leans neutral without ever feeling flat.

The dresses are where this shows up most, from fitted midi styles to more fluid, occasion ready pieces, alongside tailored separates and jeans built for the same easy versatility. It's a wardrobe that works as hard at the office as it does after hours.

At BELLA n' BEAR, we stock a considered edit of Third Form dresses, tops and jeans across the seasons. For something with a bit more colour or print alongside it, our Black Dresses edit sits well in the mix. Browse the current range below.

SHOP ALL THIRD FORM