Nikki Campbell and Sophie Coote, two 24-year-old housemates in Bondi, started the label in 2014, launching an Instagram-only linen capsule that reportedly sold out within hours. The name is shorthand for separates, intimates and ready-to-wear, and the label has stuck to that trans-seasonal, resort-minded premise while growing from a digital-only project into wholesale stockists like Barneys, Harrods and Matches.
SIR.

Dresses
SIR.'s dresses still carry the trans-seasonal logic the label was built on, easy enough for a warm climate but not so casual they can't travel. Campbell and Coote have said they design mainly for gaps in their own wardrobes, which is a very literal explanation for why these read more like personal favorites than trend pieces. That instinct is on full display here.

Olenna Twist Crepe Low-Back Gown
SIR.

Arisa Silk Mini Dress
SIR.

Noria Embroidered Silk Mini Dress
SIR.

Lilia Halter Chiffon Maxi Dress
SIR.

Exclusive Scarf-Detailed Silk Crepe de Chine Maxi Dress
SIR.

Exclusive Coastline Striped Mini Dress
SIR.

Elin Crepe de Chine Maxi Dress
SIR.

Klara Cotton Maxi Dress
SIR.

Astrid Cutout Satin Maxi Slip Dress
SIR.

Phillipa Crepe Mini Dress
SIR.

Exclusive Coastline Tie Maxi Dress
SIR.

Lilou Strapless Midi Dress
SIR.

Elin Paneled Gown
SIR.

Sona Geometric Maxi Dress
SIR.

Elsie Lace V-Neck Gown
SIR.

Lysia Halter Gown
SIR.

Mireli Slip Midi Dress
SIR.

Elsie Lace Gown
SIR.

Astrid Open Back Mini Dress
SIR.

Noria Tiered Gown
SIR.
Skirts
Skirts lean on the same minimal, feminine silhouette SIR. established with its earliest linen pieces back in 2014. The founders were 24 when they started the label out of a shared house in Bondi, designing what they felt was missing from the market rather than chasing a specific runway idea. This group keeps that same restrained shape language going.
Tops and shirting
Shirting is close to where SIR. began, since its first release was a linen capsule that sold out almost immediately after launching on Instagram alone. That original directness, a small collection with a clear point of view, still shows up in how uncomplicated these pieces are. Nothing here is trying to reinvent the shirt, just refine it.
Swim
Swim came later, added to the range in 2020 as SIR. expanded beyond its original ready-to-wear focus. It fits naturally with a brand whose founders describe their aesthetic as built around an idea of everlasting summer. These pieces read as an extension of the label's resort sensibility rather than a separate category bolted on.
More from the collection
A decade on from that first Bondi capsule, SIR. is stocked well beyond Instagram, in stores from Sydney to Harrods and Galeries Lafayette, but the assortment still favors the same minimal wardrobe essentials Campbell and Coote set out to make. This stretch of the edit is the rest of the current range, still working that same trans-seasonal idea. It's a useful place to see the label's full breadth in one pass.
Our honest take
SIR.'s appeal is that it never overcomplicated its pitch: two designers filling gaps in their own closets, with a name that literally spells out the categories they cover. Ten years in, the label is at its best in exactly those founding categories, easy linen separates and dresses, rather than wherever it's stretching newest. This edit is a fair representation of that consistency.






























