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Riley String Brief
Color
Size
The Riley String Brief in Sunset Stripe is a low-rise bikini brief, crafted from lightweight Lycra with generous stretch and an exclusive SIR. print engineered to the garment. It features adjustable side ties for a customised fit and coverage, designed to pair with the matching string bikini top.
Arriving early November 2026. Register your interest to be notified.
- Bikini brief
- Adjustable tie at side
- Low rise
- Adjustable coverage
- Lightweight lycra fabrication with generous stretch
- Designed to pair back with string top
- Exclusive SIR. print engineered to garment
Fits true to size, select your normal size.
Model 1 is 5’10” / 178cm and wears a size 1
Main: 76% Nylon 24% Spandex
Lining: 74% Nylon 26% Spandex
Cold hand wash separately
Dry flat in shade
Do not iron
Do not soak
Do not tumble dry












Buy Now, Pay Later
How Does It Work?
- Repay in 4 instalments fortnightly, interest-free
- The maximum purchase amount is $1,200
- Learn more about Afterpay
- Spread the cost into 4 interest-free instalments, fortnightly
- The maximum purchase amount is $2,000
- Learn more about Klarna
Riley String Brief
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Seen in SIR. @SIR__
Size Guide
Fits true to size, select your normal size.
Model 1 is 5’10” / 178cm and wears a size 1
- Size Conversion
- Body Measurements
0P is designed to cater for petite and shorter frames typically under 5’3” / 160cm tall to alleviate the trouble of alterations, specifically in length. Whilst the body measurements only reduce by approximately 2.5cm from size 0, the garment length reduces by an average of 7cm from waist down and arm length by an average of 5cm.
|
SIR |
SIZE 0P |
SIZE 0 |
SIZE 1 |
SIZE 2 |
SIZE 3 |
SIZE 4 |
|---|---|---|---|---|---|---|
|
INTL |
XXS |
XS |
S |
M |
L |
XL |
|
AUS |
6PETITE |
6 |
8 |
10 |
12 |
14 |
|
USA |
0 |
2 |
4 |
6 |
8 |
10 |
|
UK |
4 |
6 |
8 |
10 |
12 |
14 |
|
IT |
36 |
38 |
40 |
42 |
44 |
46 |
|
FR |
32 |
34 |
36 |
38 |
40 |
42 |
0P is designed to cater for petite and shorter frames typically under 5’3” / 160cm tall to alleviate the trouble of alterations, specifically in length. Whilst the body measurements only reduce by approximately 2.5cm from size 0, the garment length reduces by an average of 7cm from waist down and arm length by an average of 5cm.
|
MEASUREMENTS |
SIZE 0P |
SIZE 0 |
SIZE 1 |
SIZE 2 |
SIZE 3 |
SIZE 4 |
|---|---|---|---|---|---|---|
|
BUST |
77-78 |
79-81 |
84-86 |
89-91 |
94-96 |
99-101 |
|
UNDERBUST |
62-63 |
66-68 |
71-73 |
76-78 |
81-83 |
86-88 |
|
WAIST |
59-60 |
62-64 |
67-69 |
72-74 |
77-79 |
82-84 |
|
HIGH HIP |
77-79 |
80-82 |
85-87 |
90-92 |
95-97 |
100-102 |
|
LOW HIP |
87-88 |
90-92 |
95-97 |
100-102 |
105-107 |
110-112 |
0P is designed to cater for petite and shorter frames typically under 5’3” / 160cm tall to alleviate the trouble of alterations, specifically in length. Whilst the body measurements only reduce by approximately 2.5cm from size 0, the garment length reduces by an average of 7cm from waist down and arm length by an average of 5cm.
|
MEASUREMENTS |
SIZE 0P |
SIZE 0 |
SIZE 1 |
SIZE 2 |
SIZE 3 |
SIZE 4 |
|---|---|---|---|---|---|---|
|
BUST |
30-31 |
31-32 |
33-34 |
35-36 |
37-38 |
39-40 |
|
UNDERBUST |
25-26 |
26-27 |
28-29 |
30-31 |
32-33 |
34-35 |
|
WAIST |
23-24 |
24-25 |
26-27 |
28-29 |
30-31 |
32-33 |
|
HIGH HIP |
30-31 |
31-32 |
33-34 |
35-36 |
37-38 |
39-40 |
|
LOW HIP |
34-35 |
35-36 |
37-38 |
39-40 |
41-42 |
42-43 |
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