SIR the Label Cooper String Brief – Brown Beachwear
The SIR the Label Cooper String Brief is an authentic Brown Beachwear from the collection crafted in 80% Polyamide 20% Elastane
Lining: 82% Recycled Polyamide 18% Elastane. Available now at Luxury Shoes , a curated luxury-fashion retailer specialising in designer pieces with guaranteed authenticity and worldwide shipping. It exemplifies SIR’s signature aesthetic — considered modern romance through refined tailoring fluid silhouettes and natural fibres designed for both everyday wear and meaningful occasions.
The Cooper String Brief is our signature bikini bottom designed to sit low-rise and high-cut. Crafted from form-fitting lycra in the SIR. exclusive Linnea geometric print, it features a single adjustable self tie and and variable coverage. Wear with the Cooper Halter Triangle Top.
Quick Facts
- Brand: SIR the Label (Australian contemporary, founded in Sydney 2014 by Sophie Coote and Nikki Campbell)
- Product: Cooper String Brief — Beachwear
- Collection:
- Colour: Brown
- Fabric: 80% Polyamide 20% Elastane
Lining: 82% Recycled Polyamide 18% Elastane - Fit: Fits true to size, select your normal size.
Model 1 is 511 / 180cm and wears a size 0
- Authenticity: 100% authentic, verified by Luxury Shoes
- Shipping: Worldwide from UAE or Australia
How to Style the Cooper String Brief by Body Type
- Rectangle: SIR’s tailoring naturally creates structure — define the waist of this Beachwear with a slim belt or wrap silhouettes to introduce curve.
- Hourglass: The Cooper String Brief in Brown suits bias-cut and corset-style construction; let the 80% Polyamide 20% Elastane
Lining: 82% Recycled Polyamide 18% Elastane skim curves without overwhelming the line. - Tall: Maxi lengths, low backs, and column silhouettes elongate beautifully SIR pieces are often designed with longer torsos in mind.
- Petite: Look for midi cuts and high-waisted separates; the structured shoulder lines characteristic of SIR balance shorter frames.
Perfect Occasions for the Cooper String Brief
- Wedding-guest dressing — SIR is a Luxury Handbags editor favourite for modern bridal-party looks
- Rehearsal dinners or garden parties and resort celebrations
- Cocktail evenings and intimate dinners where understated polish matters
- Refined day-to-night dressing in cities like London, Sydney and Dubai
Explore our Dress Edit and the Luxury Handbags styling blog for more inspiration — including how to style a wedding-guest dress and The resort collection.
PRODUCT DETAILS
SIR the Label Cooper String Brief – Product Details
| Brand | SIR the Label designed in Sydney, Australia |
| Collection | |
| Colour | Brown |
| Fabric | 80% Polyamide 20% Elastane Lining: 82% Recycled Polyamide 18% Elastane |
| Fit | Fits true to size, select your normal size.
Model 1 is 511 / 180cm and wears a size 0 |
| Details | Bikini brief Adjustable tie at side Low rise Adjustable coverage Lightweight lycra fabrication with generous stretch Exclusive SIR. print engineered to garment |
| Care |
About SIR the Label
SIR the Label is an Australian contemporary house founded in Sydney in 2014 by Sophie Coote and Nikki Campbell. The label has become globally recognised for elevated minimalism — collections that balance clean, considered silhouettes with subtle feminine detail through refined tailoring, natural fibres, and a restrained colour palette. SIR is a recurring choice for stylists dressing modern brides, bridesmaids, and wedding guests, as well as for women building a wardrobe of investment pieces that move easily from city to coast.
“The SIR Cooper String Brief in Brown is exactly the kind of Beachwear we recommend for women building a considered wardrobe — quietly confident, beautifully tailored, and effortless to restyle from a wedding to a workday lunch. The 80% Polyamide 20% Elastane
Lining: 82% Recycled Polyamide 18% Elastane elevates it well beyond contemporary.”— Gemma Deeks, Fashion Editor at Luxury Shoes
How SIR the Label Compares
Shoppers cross-shopping the SIR Cooper String Brief typically also consider Posse the Label for more relaxed Australian quiet luxury, Bec + Bridge for occasion and evening wear, and Zimmermann for more romantic, print-led pieces. SIR sits between them — more polished than entry contemporary, more wearable than runway-driven labels. Explore the full SIR the Label collection at Luxury Shoes .
SHIPPING AND AUTHENTICITY
Shipping & Authenticity
- Authenticity guaranteed: 100% authentic SIR the Label, verified by Luxury Shoes .
- Designed in Sydney, Australia, shipped from our UAE or Australia hubs.
- Express shipping available worldwide.
Frequently Asked Questions
Is the SIR the Label Cooper String Brief authentic?
Yes. Every SIR the Label Beachwear sold by Luxury Handbags is 100% authentic and authenticity-verified before dispatch, including the Cooper String Brief in Brown.
Is the SIR Cooper String Brief true to size?
Fits true to size, select your normal size.
Model 1 is 511 / 180cm and wears a size 0. SIR’s tailored cuts generally run true to size while bias-cut and draped silhouettes are designed with a closer body line refer to the size guide on this page for exact measurements.
Is SIR the Label good for wedding-guest dressing?
Yes, SIR the Label is one of the most-requested labels at Luxury Handbags for weddings or bridesmaid edits and rehearsal dinners. The Cooper String Brief in Brown is particularly well-suited to occasion dressing.
What fabric is the SIR Cooper String Brief made from?
The Cooper String Brief is crafted from 80% Polyamide 20% Elastane
Lining: 82% Recycled Polyamide 18% Elastane. SIR works predominantly with natural fibres like silk, linen, organic cotton, and refined blends — chosen for drape, longevity, and a considered hand-feel.
Does Luxury Handbags ship SIR the Label internationally?
Yes. Luxury Handbags ships SIR the Label worldwide from our UAE and Australia hubs with express options.
Luxury Handbags Style & Discovery Hub
Shop This Category
Compare Australian Designers
Last updated · Curated & authenticated by Luxury Shoes
Gift shop
