89% matchSIR the Label
Sydney minimalism, trans-seasonal neutral separates
What changes: More romantic linen/resort leanings and higher price
Brand profile
THIRD FORM
Australian womenswear label from Sydney designer Merryn Kelly, making pared-back, versatile day-to-evening pieces in muted neutrals.
SydneyOrigin
WomenswearFocus
Minimalist / ContemporaryStyle
$$$Price
4 brands like THIRD FORM like SIR the Label, Silk Laundry, Shona Joy →
What to know about THIRD FORM
Founder came out of Zimmermann
Merryn Kelly designed for Zimmermann, Shakuhachi and Lee Jeans before starting the Sydney label in 2014, and was a VAMFF National Designer Award finalist.
Built for day into evening
Slip and column dresses, blazers, knit sets and drapey separates in muted neutrals, cut as repeatable staples rather than seasonal trend pieces.
Womenswear, sold well beyond Australia
It is an Australian womenswear line at upper-mid prices, reaching shoppers through its own site plus SSENSE, Anthropologie and The Iconic.
If you like THIRD FORM
89% match
83% matchSilk Laundry
90s sandwashed silk slips in the same muted palette
What changes: Narrower fabric focus, no tailoring
74% matchShona Joy
Sydney bias-cut slips pushed toward occasion dressing
What changes: Heavy bridal/bridesmaid business, more event-driven
72% matchLeset
Modular knit sets with the same quiet neutral logic
What changes: Lounge-to-street knits only, no tailoring or leather
Brand facts
THIRD FORM is an Australian womenswear label founded in Sydney by Merryn Kelly, who previously designed for Zimmermann, Shakuhachi and Lee Jeans. Collections centre on pared-back, versatile silhouettes: slip and column dresses, tailored blazers and trousers, knit sets, leather pieces and drapey separates, mostly in muted neutrals. The brand positions its output as day-to-evening staples rather than trend pieces. It sells direct through thirdform.com.au and via wholesale partners including SSENSE, Anthropologie and The Iconic, and Kelly was a finalist for the VAMFF National Designer Award.
- Founded
- 2014
- Origin
- Sydney, Australia
- Made in
- Australia
- Price
- $$$
- Typical prices
- Tops $204–$241
- Focus
- Womenswear
- Facts checked
- August 2026
- Styles
- Minimalist / Contemporary, Quiet luxury