Rip Curl
Rip Curl Women's Diamond Icon Twill Cap - Dark Plum
Pickup available at Shop 3/1 Rainbow Beach Road
Usually ready in 2 hours
Clean lines, timeless surf cred — the Diamond Icon Twill Cap is the everyday essential that goes with everything in your wardrobe.
From one of Australia's most iconic surf brands, Rip Curl delivers a structured six-panel cap in enzyme-washed cotton twill that gives it a vintage, worn-in look straight out of the box. Embroidered eyelets, a woven flag label, and Rip Curl embroidery add premium detail, while the standard curve peak and adjustable fit make it comfortable for a wide range of head sizes (54cm–59cm). The Dark Plum colourway is rich and versatile — a fresh take on a surf staple.
Details
- Style: Six-panel structured cap
- Fabric: 100% Cotton — enzyme washed twill
- Fit: Adjustable — fits head circumference 54cm–59cm / 21.2"–23.2"
- Peak: Standard curve peak
- Care: Follow care label instructions
- Colourway: Dark Plum — a deep, rich purple with vintage wash finish and embroidery detail
Design Features
- Six-panel structured shape
- Enzyme wash — vintage look finish
- Rip Curl embroidery
- Embroidered eyelets
- Woven flag label
- Standard curve peak
- Adjustable closure
Why You'll Love It: Enzyme-washed cotton twill, embroidered detail, and an adjustable fit — the Diamond Icon Twill Cap is the surf cap that gets better with every wear.
Perfect For: Shading your eyes on long beach days, keeping the sun off during a coastal road trip, or just pulling on when you can't be bothered doing your hair — this is the cap you'll reach for every time.
For help finding your perfect fit, call us on 07 5486 3099 — our team is happy to hand-measure any garment and walk you through sizing and fit options.
Available now at 13th Beach Surf with fast Australia Wide Shipping From our store in Rainbow Beach Queensland.
Collapsible row
Size Guides
Every brand fits a little differently, so tap your brand below to open its size chart. Not sure which size to pick? Call us on 07 5486 3099. Our team is happy to hand-measure any garment and walk you through sizing and fit options.
Women's Tops
Body measurements for all women's tops, dresses, playsuits, jumpsuits, jackets and jumpers.
| XS | S | M | L | XL | |
|---|---|---|---|---|---|
| AU/UK | 6 | 8 | 10 | 12 | 14 |
| US | 2 | 4 | 6 | 8 | 10 |
| EU | 34 | 36 | 38 | 40 | 42 |
| Bust (cm) | 79-83 | 84-88 | 89-93 | 94-98 | 99-103 |
| Waist, at smallest point (cm) | 61-65 | 66-70 | 71-75 | 76-80 | 81-85 |
| Hips, at widest point (cm) | 89-93 | 94-98 | 99-103 | 104-108 | 109-113 |
Women's Bottoms
Body measurements for all women's bottoms.
| XS | S | M | L | XL | |
|---|---|---|---|---|---|
| Pants | 24 | 26 | 28 | 30 | 32 |
| AU/UK | 6 | 8 | 10 | 12 | 14 |
| US | 2 | 4 | 6 | 8 | 10 |
| EU | 34 | 36 | 38 | 40 | 42 |
| Waist, at smallest point (cm) | 61-65 | 66-70 | 71-75 | 76-80 | 81-85 |
| Hips, at widest point (cm) | 89-93 | 94-98 | 99-103 | 104-108 | 109-113 |
Women's Intimates
Body measurements for all women's intimates.
| XS | S | M | L | XL | |
|---|---|---|---|---|---|
| AU | 6 | 8 | 10 | 12 | 14 |
| US | 2 | 4 | 6 | 8 | 10 |
| EU | 34 | 36 | 38 | 40 | 42 |
| Bust (cm) | 79-83 | 84-88 | 89-93 | 94-98 | 99-103 |
| Underbust (cm) | 68-72 | 73-77 | 78-82 | 83-87 | 88-92 |
| Waist, at smallest point (cm) | 61-65 | 66-70 | 71-75 | 76-80 | 81-85 |
Sizing tips
Choose your normal running shoe size when ordering Archies thongs or slides. If you're normally a half size, size up to the nearest full size (for example, if you're a 7.5, order an 8).
Women's Thongs & Slides
| US Women's | UK | EU | Foot length (cm) |
|---|---|---|---|
| 5 | 3 | 36-36.5 | 22-22.5 |
| 6 | 4 | 37-37.5 | 22.6-23.4 |
| 7 | 5 | 38.5-39 | 23.5-24.2 |
| 8 | 6 | 39.5-40 | 24.3-25 |
| 9 | 7 | 41-41.5 | 25.1-26 |
| 10 | 8 | 42.5-43 | 26.1-26.7 |
| 11 | 9 | 43.5-44 | 26.8-27.5 |
| 12 | 10 | 45-45.5 | 27.6-28.3 |
| 13 | 11 | 46-46.5 | 28.4-29.1 |
| 14 | 12 | 47.5-48 | 29.2-30 |
| 15 | 13 | 48.5-49 | 30.1-30.8 |
| 16 | 14 | 50-50.5 | 30.9-31.6 |
Men's Thongs & Slides
| US Men's | UK | EU | Foot length (cm) |
|---|---|---|---|
| 4 | 3 | 36-36.5 | 22-22.5 |
| 5 | 4 | 37-37.5 | 22.6-23.4 |
| 6 | 5 | 38.5-39 | 23.5-24.2 |
| 7 | 6 | 39.5-40 | 24.3-25 |
| 8 | 7 | 41-41.5 | 25.1-26 |
| 9 | 8 | 42.5-43 | 26.1-26.7 |
| 10 | 9 | 43.5-44 | 26.8-27.5 |
| 11 | 10 | 45-45.5 | 27.6-28.3 |
| 12 | 11 | 46-46.5 | 28.4-29.1 |
| 13 | 12 | 47.5-48 | 29.2-30 |
| 14 | 13 | 48.5-49 | 30.1-30.8 |
| 15 | 14 | 50-50.5 | 30.9-31.6 |
This is a general guide to Rhythm sizing to help you compare against your own measurements. Some styles may fit differently, and any fit notes are listed in the product description.
Women's Swim & Apparel
| AU Size | 6 | 8 | 10 | 12 | 14 | 16 |
|---|---|---|---|---|---|---|
| US Size | 2 | 4 | 6 | 8 | 10 | 12 |
| International | XS | S | M | L | XL | XXL |
| Bust | 80cm | 84cm | 88cm | 92cm | 96cm | 100cm |
| Waist | 64cm | 68cm | 72cm | 76cm | 80cm | 84cm |
| Hips | 91cm | 95cm | 99cm | 103cm | 107cm | 111cm |
Men's Tops
| Size | XS | S | M | L | XL | XXL |
|---|---|---|---|---|---|---|
| Height | 155-160cm | 160-165cm | 165-170cm | 170-180cm | 180-190cm | 190cm |
| Chest | 86.5cm | 91cm | 96.5cm | 101cm | 106.5cm | 111.5cm |
Men's T-shirts
Garment measurements by fit.
Vintage T-shirts: relaxed, boxy style. Wider through the body and neck opening, with dropped shoulders, a slightly longer sleeve and a thick 1x1 neck rib.
| Size | XS | S | M | L | XL | XXL |
|---|---|---|---|---|---|---|
| Shoulder | 44.5cm | 46cm | 47.5cm | 49cm | 50.5cm | 53cm |
| Chest | 52.5cm | 54.5cm | 56.5cm | 58.5cm | 60.5cm | 63.5cm |
| Length | 65cm | 67cm | 69cm | 71cm | 73cm | 76cm |
Band T-shirts: cropped length. Inspired by early-60s military sporting tees, with cropped sleeves and body for a boxy look that sits below the waist, plus a wider 1x1 neck rib.
| Size | XS | S | M | L | XL | XXL |
|---|---|---|---|---|---|---|
| Shoulder | 46.5cm | 48cm | 49.5cm | 51cm | 52.5cm | 54cm |
| Chest | 50.5cm | 52.5cm | 54.5cm | 56.5cm | 58.5cm | 60.5cm |
| Length | 60cm | 62cm | 64cm | 66cm | 68cm | 70cm |
Relaxed Fit T-shirts: regular length. A timeless everyday cut, not too loose and not too tight through the body and sleeves, with a regular 1x1 neck rib.
| Size | XS | S | M | L | XL | XXL |
|---|---|---|---|---|---|---|
| Shoulder | 44.5cm | 46cm | 47.5cm | 49cm | 50.5cm | 53cm |
| Chest | 52.5cm | 54.5cm | 56.5cm | 58.5cm | 60.5cm | 63.5cm |
| Length | 66cm | 68cm | 70cm | 72cm | 74cm | 77cm |
Men's Pants, Shorts & Trunks
| Size | 28 | 30 | 32 | 33 | 34 | 36 |
|---|---|---|---|---|---|---|
| Waist | 76.5cm | 81.9cm | 87cm | 89.5cm | 92.1cm | 97.2cm |
How to measure
Bust: measure under your arms at the fullest part of your bust, keeping the tape level across your shoulder blades.
Chest: measure under your arms at the fullest part of your chest, keeping the tape level across your shoulder blades.
Waist: measure around your natural waistline, with the tape sitting comfortably loose.
Hips: measure around the fullest part of your low hip, keeping the tape level across your backside.
All measurements are body measurements in centimetres.
Women's Size Guide
| Size | AU | Pants | Chest | Waist | Hip |
|---|---|---|---|---|---|
| XXS | 6 | 24 | 76-79 | 59-61 | 84-87 |
| XS | 8 | 25-26 | 81-84 | 64-66 | 90-92 |
| S | 10 | 27-28 | 86-89 | 69-71 | 95-97 |
| M | 12 | 29-30 | 91-94 | 74-76 | 100-102 |
| L | 14 | 32 | 96-99 | 79-81 | 105-107 |
| XL | 16 | 33 | 101-104 | 84-86 | 110-112 |
| XXL | 18 | 34 | 106-109 | 89-91 | 115-117 |
Men's Size Guide
| Size | AU | Height | Chest | Waist | Hip |
|---|---|---|---|---|---|
| XS | 28-29 | 168-171 | 85-88 | 70-73 | 85-88 |
| S | 30-31 | 173-176 | 90-93 | 75-78 | 90-93 |
| M | 32-33 | 178-181 | 95-98 | 80-83 | 95-98 |
| L | 34-35 | 183-186 | 100-103 | 85-88 | 100-103 |
| XL | 36-38 | 188-193 | 105-108 | 90-95 | 105-108 |
| XXL | 40-42 | 195 | 110-113 | 100-105 | 110-113 |
| XXXL | 44 | 195 | 115 | 115 | 115 |
Body measurements and international size conversions.
Women's Tops
| INTL | AU/UK | US | EU | Bust (cm) | Waist (cm) |
|---|---|---|---|---|---|
| XXS | 4 | 0 | 32 | 72-76 | 54-58 |
| XS | 6 | 2 | 34 | 77-81 | 59-63 |
| S | 8 | 4 | 36 | 82-86 | 64-68 |
| M | 10 | 6 | 38 | 87-91 | 69-73 |
| L | 12 | 8 | 40 | 92-96 | 74-78 |
| XL | 14 | 10 | 42 | 97-101 | 79-83 |
| XXL | 16 | 12 | 44 | 102-106 | 84-88 |
Women's Bottoms
| INTL | AU/UK | US | EU | Waist (in) | Waist (cm) | Hip (cm) |
|---|---|---|---|---|---|---|
| XXS | 4 | 0 | 32 | 22 | 55-57 | 81-83 |
| 5 | 23 | 58-59 | 84-85 | |||
| XS | 6 | 2 | 34 | 24 | 60-62 | 86-88 |
| 7 | 25 | 63-64 | 89-90 | |||
| S | 8 | 4 | 36 | 26 | 65-67 | 91-93 |
| 9 | 27 | 68-69 | 94-95 | |||
| M | 10 | 6 | 38 | 28 | 70-72 | 96-98 |
| 11 | 29 | 73-74 | 99-100 | |||
| L | 12 | 8 | 40 | 30 | 75-78 | 101-104 |
| XL | 14 | 10 | 42 | 32 | 79-83 | 105-109 |
| XXL | 16 | 12 | 44 | 34 | 84-88 | 110-114 |
Men's Tops
| INTL | AU/UK | US | EU | Chest (cm) | Length (cm) |
|---|---|---|---|---|---|
| XXS | 32 | 32 | 42 | 82-85 | 68-69 |
| XS | 34 | 34 | 44 | 86-89 | 70-71 |
| S | 36 | 36 | 46 | 90-93 | 72-73 |
| M | 38 | 38 | 48 | 94-97 | 74-75 |
| L | 40 | 40 | 50 | 98-101 | 76-77 |
| XL | 42 | 42 | 52 | 102-105 | 78-79 |
| XXL | 44 | 44 | 54 | 106-109 | 80-81 |
Men's Bottoms
| INTL | AU/UK | US | EU | Waist (cm) | Hip (cm) |
|---|---|---|---|---|---|
| XXS | 26 | 26 | 42 | 64-69 | 80-84 |
| XS | 28 | 28 | 44 | 69-74 | 85-89 |
| 29 | 29 | 72-78 | 88-92 | ||
| S | 30 | 30 | 46 | 74-81 | 90-94 |
| 31 | 31 | 77-82 | 93-97 | ||
| M | 32 | 32 | 48 | 79-83 | 95-99 |
| 33 | 33 | 82-86 | 98-102 | ||
| L | 34 | 34 | 50 | 84-88 | 100-104 |
| XL | 36 | 36 | 52 | 89-93 | 105-109 |
| XXL | 38 | 38 | 54 | 94-98 | 110-114 |
Women's Swimwear
Body measurements in centimetres.
| XXS | XS | S | M | L | XL | XXL | XXXL | |
|---|---|---|---|---|---|---|---|---|
| AUS/NZ | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 |
| Bust | 82 | 84.5 | 87 | 92 | 97 | 102 | 107 | 112 |
| Waist | 62 | 64.5 | 67 | 72 | 77 | 82 | 87 | 92 |
| Hip | 92 | 94.5 | 97 | 102 | 107 | 112 | 117 | 122 |
| Underbust | 69 | 71.5 | 74 | 79 | 84 | 89 | 94 | 99 |
| A-cup bust | 79.5 | 82 | 84.5 | 89.5 | 94.5 | |||
| D-cup bust | 84.5 | 87 | 89.5 | 94.5 | 99.5 | 104.5 | 109.5 | 114.5 |
| DD-cup bust | 89.5 | 92 | 97 | 102 | 107 | 112 | 117 | |
| E-cup bust | 92 | 94.5 | 99.5 | 104.5 | 109.5 | 114.5 | 119.5 | |
| F-cup bust | 94.5 | 97 | 102 | 107 | 112 | 117 | 122 | |
| G-cup bust | 97 | 99.5 | 104.5 | 109.5 | 114.5 | 119.5 | 124.5 |
Women's Clothing
| XS | S | M | L | XL | XXL | |
|---|---|---|---|---|---|---|
| AUS/NZ | 8 | 10 | 12 | 14 | 16 | 18 |
| Bust (with bra) | 85cm | 90cm | 95cm | 100cm | 105cm | 110cm |
| Bust (no bra) | 83cm | 88cm | 93cm | 98cm | 103cm | 108cm |
| Waist | 65cm | 70cm | 75cm | 80cm | 85cm | 90cm |
| Hip | 95cm | 100cm | 105cm | 110cm | 115cm | 120cm |
| Rib cage / underbust | 69cm | 74cm | 79cm | 84cm | 89cm | 94cm |
| Across shoulder | 37.8cm | 39cm | 40.2cm | 41.4cm | 42.6cm | 43.8cm |
| Across back | 37.8cm | 39cm | 40.2cm | 41.4cm | 42.6cm | 43.8cm |
Body measurements in centimetres.
Women's Tees, Tanks, Shirts & Dresses
| AU Size | Bust | Waist | Hip | US | EU |
|---|---|---|---|---|---|
| 4 | 75 | 57 | 85 | 0 | 32 |
| 6 | 80 | 62 | 90 | 2 | 34 |
| 8 | 85 | 67 | 95 | 4 | 36 |
| 10 | 90 | 72 | 100 | 6 | 38 |
| 12 | 95 | 77 | 105 | 8 | 40 |
| 14 | 100 | 82 | 110 | 10 | 42 |
| 16 | 105 | 87 | 115 | 12 | 44 |
| 18 | 110 | 92 | 120 | 14 | 46 |
Women's Pants, Jeans, Shorts & Skirts
| AU Size | Waist | Hip | Inch | US | EU |
|---|---|---|---|---|---|
| 4 | 57 | 85 | 22 | 0 | 32 |
| 6 | 62 | 90 | 24 | 2 | 34 |
| 7 | 64.5 | 92.5 | 25 | 3 | 35 |
| 8 | 67 | 95 | 26 | 4 | 36 |
| 9 | 69.5 | 97.5 | 27 | 5 | 37 |
| 10 | 72 | 100 | 28 | 6 | 38 |
| 11 | 74.5 | 102.5 | 29 | 7 | 39 |
| 12 | 77 | 105 | 30 | 8 | 40 |
| 14 | 82 | 110 | 32 | 10 | 42 |
| 16 | 87 | 115 | 34 | 12 | 44 |
| 18 | 92 | 120 | 36 | 14 | 46 |
Men's Tees, Tanks & Shirts
| Size | XS | S | M | L | XL | XXL |
|---|---|---|---|---|---|---|
| Neck | 38 | 39 | 40 | 41 | 42 | 43 |
| Chest | 86-91 | 91-96 | 96-101 | 101-106 | 106-111 | 111-116 |
| Waist | 71 | 76 | 81 | 86 | 91 | 96 |
| Related size | 28 | 30 | 32 | 34 | 36 | 38 |
Men's Pants, Jeans & Shorts
| Size | Waist | Hip | Inleg | Related size |
|---|---|---|---|---|
| 28 | 71 | 94 | 82 | XS |
| 29 | 73.5 | 96.5 | 82.5 | XS-S |
| 30 | 76 | 99 | 83 | S |
| 31 | 78.5 | 101.5 | 83.5 | S-M |
| 32 | 81 | 104 | 84 | M |
| 33 | 83.5 | 106.5 | 84.5 | M-L |
| 34 | 86 | 109 | 85 | L |
| 36 | 91 | 114 | 86 | XL |
| 38 | 96 | 119 | 87 | XXL |
Body measurements in centimetres, taken snug over the skin.
Women's Tops & Bottoms
Bust applies to tops. Junior size applies to bottoms.
| Size | Size # | Jr. size | Height | Bust | Waist | Fullest hip |
|---|---|---|---|---|---|---|
| XS | 24 | 0 | 155-163 | 79-81 | 59.5 | 84-86 |
| XS | 25 | 1 | 155-163 | 81-84 | 62 | 86-90 |
| S | 26 | 3 | 163-170 | 84-86 | 64.5 | 90-92 |
| S | 27 | 5 | 163-170 | 86-89 | 67 | 92-94 |
| M | 28 | 7 | 163-170 | 89-91 | 70 | 94-96 |
| M | 29 | 9 | 165-175 | 91-94 | 72 | 96-99 |
| L | 30 | 11 | 165-175 | 94-99 | 75-77 | 99-101 |
| XL | 31 | 13 | 165-175 | 99-101 | 80 | 104-106 |
| XXL | 32 | 15 | 165-175 | 101-104 | 82.5 | 106-109 |
| 12W | 12W | 165-175 | 104-106 | 84-88 | 106-109 | |
| 14W | 14W | 165-175 | 106-109 | 88-94 | 111-114 | |
| 16W | 16W | 165-175 | 109-114 | 95-100 | 119-124 | |
| 18W | 18W | 165-175 | 114-119 | 101-106 | 124-129 | |
| 20W | 20W | 165-175 | 119-124 | 107-113 | 129-134 | |
| 22W | 22W | 165-175 | 124-129 | 111-116 | 134-139 | |
| 24W | 24W | 165-175 | 129-134 | 116-122 | 139-145 | |
| 26W | 26W | 165-175 | 134-139 | 122-127 | 145-150 |
Men's Tops
| Size | Height | Neck | Across shoulder | Chest | Sleeve (from centre back neck) | Bicep |
|---|---|---|---|---|---|---|
| XS | 167-170 | 35.5 | 42 | 81-86 | 75-80 | 30 |
| S | 172-177 | 36-37 | 44 | 86-91 | 81-84 | 32 |
| M | 177-185 | 38-39 | 46 | 96-101 | 85-88 | 34 |
| L | 180-188 | 40-42 | 48 | 106-111 | 90-93 | 36 |
| XL | 183-190 | 43-44 | 50 | 112-117 | 93-95 | 38 |
| XXL | 183-190 | 45-46 | 52 | 117-122 | 93-95 | 40 |
Men's Pants & Shorts
Covers fixed-waist bottoms, elastic-waist shorts and pants, and shorts. Inseam applies to fixed-waist pants. XS/26 is available in shorts only, and elastic-waist styles run up to XXL/42.
| Size | Height | Waist | Hips | Thigh | Inseam |
|---|---|---|---|---|---|
| XS/26 | 165-167 | 66 | 81-84 | 49 | |
| XS/27 | 167-170 | 68 | 84-86 | 50 | 76 |
| S/28 | 167-170 | 71 | 86-88 | 51.5 | 76 |
| S/29 | 172-177 | 74 | 89-91 | 53 | 76 |
| S/30 | 172-177 | 76 | 91-94 | 54 | 81 |
| M/31 | 177-185 | 79 | 94-96 | 55.5 | 81 |
| M/32 | 177-185 | 81 | 96-98 | 56.5 | 81 |
| M/33 | 177-185 | 84 | 99-101 | 58 | 81 |
| L/34 | 180-188 | 86 | 102-104 | 59 | 81 |
| L/36 | 180-188 | 92 | 104-107 | 61.5 | 84 |
| XL/38 | 183-190 | 96 | 107-109 | 64 | 84 |
| XL/40 | 183-190 | 102 | 109-112 | 67 | 84 |
| XXL/42 | 183-190 | 106 | 112-115 | 70 | 84 |
| XXXL/44 | 183-190 | 111 | 116-123 | 71.7 | 84 |
| XXXL/46 | 183-190 | 117 | 123-127 | 74.3 | 84 |







