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Size Guide

Our Premium Ready-to-Wear collections are made with luxuriously soft and supple limestone-based Yamamoto Neoprene (2.5 mm thick) and high-quality, 4-way stretch Lycra fabric. Together with our exceptionally tailored design, these materials provide added stretch and a more flexible, forgiving fit than other wetsuits of comparable thickness that you may be used to.

What's more...our signature side-ties allow for greater variance in bottom sizing: cinch tighter or loosen as needed for a more customized fit

The following guide provides our best estimate on what to expect with our sizing...

Our SizeXXSXSSS+tallMLXL
USA00 – 11 – 34 – 74 – 86 – 910 – 1212 – 14
AU2 – 44 – 66 – 86 – 810 – 1212 – 1414 – 16
FR32 – 3434 – 3636 – 3836 – 3840 – 4242 – 4444 – 46
DE30 – 3232 – 3434 – 3634 – 3636 – 3840 – 4242 – 44
JP3 – 55 – 77 – 97 – 911 – 1313 – 1515 – 17
SK33445555667788

 

It is important to remember that every woman's body is different, and our wetsuits stretch in subtle ways to fit differently based on height and weight distribution as well as specific measurements.  

Sirensong Wetsuits Measurements and Sizing Guide

  • The cm ranges presented above estimate the minimum and maximum body measurements expected to comfortably fit in a given size, and are based on actual wetsuit measurements and stretch capacity.  
  • For example, with the XS Bust range of 73-85 cm: 73 cm is just slightly larger than the actual wetsuit measurement (you want it to stretch for a snug fit), and 85 cm is at the upper end of the materials' stretch capacity.  
  • For an optimal fit, your measurements should be somewhere within the given range, but larger measurements may still fit if you are smaller in other areas.
  • Taller ladies or those with a long torso who fall in the XS or Medium category may want to choose a larger size to accommodate additional height.  Our jackets provide an option for those with a hard time fitting in a 1-piece suit.  We look forward to adding XL springsuits and additional tall sizes in future collections!  

If you have additional questions, you can email us and we'll help you pick the best fit.

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Size Guide
XXS
XS
S
S+
M
M+
L
XL
XXL
Bust Waist Hip Vertical Inseam Shoulder
64 − 70 55 − 71 65 − 77 125 − 142 30 − 34 65 − 75
68 − 79 56 − 72 70 − 85 133 − 157 30 − 36 68 − 82
74 − 89 62 − 80 74 − 91 138 − 167 32 − 39 71 − 87
76 − 88 63 − 80 75 − 90 149 − 174 34 − 40 71 − 86
81 − 97 67 − 85 80 − 99 141 − 172 32 − 40 71 − 88
80 − 104 66 − 86 78 − 101 156 − 204 36 − 48 71 − 93
88 − 105 71 − 91 85 − 104 152 − 183 37 − 46 78 − 96
94 − 123 74 − 96 91 − 118 160 − 209 39 − 52 76 − 99
97 − 127 81 − 106 99 − 129 171 − 223 42 − 55 83 − 108

Notes:  The ranges above are averaged across multiple collections with slightly different fits. Collection-specific size charts are provided on product pages.

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Scroll down for additional information about key measurement points...

1
2
3
4
4
5
6

1) BUST (circumference): Measure around the body, over the bust.

2) WAIST (circumference): Measure around the body, at the narrowest part of your torso.

3) HIP (circumference): Measure around the body, at the upper hip bone area.

4) VERTICAL (front-to-back): (B→ C→ D→ B)
Beginning at the top of your shoulder near the side of your neck (Point B), measure on a diagonal line down your torso, between your legs, and up your back to where you started (Point B).

5) INSEAM (front-to-back): (C→ D)
Measure from the top of your bikini line, (Point C), between your legs, and back up to the top of your booty near your tail-bone (Point D).

6) SHOULDERS (circumference): (A ↔ A) *note the distinction between points A & B With elbows at your side, measure around the body at the top of your shoulders (Point A).

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Hover/tap over numbers on the diagram below for additional instruction...

1)  Bust
2) Waist
3) Hip
4) Vertical
5) Inseam
6) Shoulders

1

BUST (circumference): Measure around the body, over the bust.

2

WAIST (circumference): Measure around the body, at the narrowest part of your torso.

3

HIP (circumference): Measure around the body, at the upper hip bone area.

4

VERTICAL (front-to-back): (B→ C→ D→ B)
Beginning at the top of your shoulder near the side of your neck (Point B), measure on a diagonal line down your torso, between your legs, and up your back to where you started (Point B).

4

VERTICAL (front-to-back): (B→ C→ D→ B)
Beginning at the top of your shoulder near the side of your neck (Point B), measure on a diagonal line down your torso, between your legs, and up your back to where you started (Point B).

5

INSEAM (front-to-back): (C→ D)
Measure from the top of your bikini line, (Point C), between your legs, and back up to the top of your booty near your tail-bone (Point D).

6

SHOULDERS (circumference): (A ↔ A) *note the distinction between points A & B With elbows at your side, measure around the body at the top of your shoulders (Point A).

Order Flow

Prior to shipping, each wetsuit goes through a hands-on finishing process, followed by a thorough quality-control inspection. Orders are generally shipped from our home-base in Hawaii, within 1-2 business days.

  • Grab-Bags and other orders containing hats may take an extra day or two, as the hats are generally not finished in advance of ordering.
  • Occasionally, during high volume sales periods/sale events, it may take longer than 1-2 days to get your order out. If you have a shipping deadline we should be mindful of (e.g., leaving for a trip, a birthday, etc.) – please let us know in your order comments or by email, and we will do our best to make sure your package arrives on time.

Once your order is packed-up and ready to ship, you will receive an email containing package tracking details.

  • Because we create shipping labels online, your shipping notification email may arrive before tracking details are updated online by the shipping company (USPS, DHL, etc.) – but not to worry...updates should appear soon!

Choose from our discounted flat-rates (generally USPS Priority Mail) to save money, or pick a courier service (FedEx/DHL) for more time-sensitive service. Shipping rates are listed below:

Shipping Rates...

  • Kama'aina (all Hawaiian islands) — $6
    Once received by USPS, delivery ranges from overnight (Oahu) up to 2 business days for outer islands.
  • Overnight Express (Hawaiian islands) — $22
    While generally unnecessary on Oahu, outer-island customers requiring overnight service should choose this option. ( If you are on Oahu and require overnight service, choose this option if overnight is a MUST.)
  • Standard Domestic (Mainland, Alaska, Puerto Rico, Guam, US Virgin Islands, and APO) — $12
    This service generally takes 3–5 days, but occasionally longer, as routing overseas from Hawaii often adds extra time.
  • 2-day Express (Mainland, Alaska, Puerto Rico, Guam, US Virgin Islands, and APO) — $40
    Please note that so-called 'overnight' service from Hawaii is virtually non-existent and generally takes 2-days.
  • Standard International flat-rate shipping — $24
    Service generally takes 7–15 business days. Expect a slower Customs processing time when choosing this option.
  • International Express flat-rate shipping — $24
    Service generally takes 4–10 business days. Again, expect a slower Customs processing time when choosing this option.
  • Expedited International Express (FedEx, UPS, DHL) — Rates Vary
    This is the fastest and most reliable option with the quickest Customs processing time. Rates vary depending on location and courier service.

International Taxes & Tariffs

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Please be advised that you may be responsible for import taxes/tariffs, which are assessed-by and payable-to your home country's Customs agency.

  • As soon as it's available, a pdf copy of the shipping label and associated customs documentation will be available for download via a link provided on your order status page. (Please refer to your order confirmation email for the link to your order status page.)
  • Customs processing time can add unpredictability to the expected delivery date for international shipments.

Drop Us A Line

Aloha! We’re happy to answer any questions you have or assist you with placing an order. Send us a message using the form below and we will get back to you as soon as possible!

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