Aquamarine Steamer Back Zip in Emerald
The New & Improved Steamer
A complete rethink of our classic steamer—this isn’t just a new colourway, it’s a full design upgrade, shaped by your feedback and our obsession with the perfect surf suit.
Performance Meets Style
Iridescent panels, a feminine waistband, and sleek full-length legs deliver a bold look that’s as functional as it is eye-catching. Designed for cool-water sessions, this suit gives you:
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3/2mm Limestone Neoprene
Made entirely from premium Japanese Yamamoto limestone neoprene: -
3mm in the body for warmth
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2mm in the arms & legs for flexibility
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Ideal for 14–20°C waters (perfect for autumn, spring, and mild winter surfs)
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Smooth Skin Panels
On the chest and back, lined with internal thermal fabric for insulation and wind protection. -
Glued and Flatlock-Stitched Seams
With internal taping for added durability and comfort. -
Heavy-Duty YKK Back Zipper
With improved Velcro closure for a secure fit. -
Silicone Taping at Ankles, Wrists, and Neck
Prevents water from flushing through. -
V-Shaped Smooth Skin Back Panel
Flattering fit and better lower-back coverage—no more gaping! -
Kneepads for Durability
So you can move, duck-dive, and kneel without wear.
Find Your Fit
Now offering Small Tall and Medium Tall sizes for those with longer limbs and torsos.
Find the best fit for you, the first time - refer to our size guide here.
Wetsuit Fit & Sizing Guide
Our wetsuits are designed with a performance fit — snug against the body to keep you warm in the water and moving freely through the waves.
When trying on your suit, it should feel firm and supportive, like a second skin. It may feel tight on land, but it will soften slightly once in the water and with wear.
If you are between sizes, we generally recommend sizing up for comfort.
Things to keep in mind:
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A snug fit ensures warmth and prevents water flushing through the suit
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The neck should feel secure but not restrict breathing
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There should be no loose folds behind the knees, lower back, or underarms
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The suit will relax slightly over time and mould to your body, that's what makes the Yamamoto material so special!
If you're unsure, feel free to reach out with your height, weight, and measurements — we’re always happy to help guide you to the best fit.
Size Guide - Wetsuits

Size Guide
Clothing
Our apparel follows standard Australian sizing. Measure yourself on the body and match to the chart below — if you land between two sizes, size up for a looser, more laid-back fit.
| Size | XXS | XS | S | M | L | XL | XXL |
|---|---|---|---|---|---|---|---|
| AUS / NZ | 4 | 6 | 8 | 10 | 12 | 14 | 16 |
| US / EU | 0/32 | 2/34 | 4/36 | 6/38 | 8/40 | 10/42 | 12/44 |
| Underbust | 65 | 67 | 70 | 75 | 80 | 85 | 90 |
| Bust | 78 | 80 | 83 | 88 | 93 | 98 | 103 |
| Waist | 62 | 64 | 67 | 72 | 77 | 82 | 87 |
| Hip | 89 | 91 | 94 | 99 | 104 | 109 | 114 |
| Underbust | 25.5 | 26.5 | 27.5 | 29.5 | 31.5 | 33.5 | 35.5 |
| Bust | 30.5 | 31.5 | 32.5 | 34.5 | 36.5 | 38.5 | 40.5 |
| Waist | 24.5 | 25 | 26.5 | 28.5 | 30.5 | 32.5 | 34 |
| Hip | 35 | 35.5 | 37 | 39 | 41 | 43 | 45 |
Wetsuits
Wetsuits are sized on height and weight rather than body measurements. Our suits are cut in AU sizes and should feel snug without restricting you — a loose suit flushes water.
| AUS / UK | US | Height (cm)(in) | Weight (kg) |
|---|---|---|---|
| XXS 4 | 0 | 155–16661–65.5 | 45–52 |
| XS 6 | 2 | 160–16963–66.5 | 53–58 |
| S 8 | 4 | 164–17364.5–68 | 59–62 |
| ST 8 | 4T | 167–17666–69.5 | 59–62 |
| M 10 | 6 | 167–17666–69.5 | 63–67 |
| MT 10 | 6T | 169–17866.5–70 | 63–67 |
| L 12 | 8 | 169–17866.5–70 | 68–75 |
| XL 14 | 10 | 172–18167.5–71.5 | 76–82 |
| XXL 16 | 12 | 175–18569–73 | 83–90+ |
T sizes (ST, MT) are cut for taller frames through the torso and legs.
Swimwear
Our swim is designed for a close, secure fit that stays put in the surf. It shares the same body measurements as our apparel.
| Size | XXS | XS | S | M | L | XL | XXL |
|---|---|---|---|---|---|---|---|
| AUS / NZ | 4 | 6 | 8 | 10 | 12 | 14 | 16 |
| US / EU | 0/32 | 2/34 | 4/36 | 6/38 | 8/40 | 10/42 | 12/44 |
| Underbust | 65 | 67 | 70 | 75 | 80 | 85 | 90 |
| Bust | 78 | 80 | 83 | 88 | 93 | 98 | 103 |
| Waist | 62 | 64 | 67 | 72 | 77 | 82 | 87 |
| Hip | 89 | 91 | 94 | 99 | 104 | 109 | 114 |
| Underbust | 25.5 | 26.5 | 27.5 | 29.5 | 31.5 | 33.5 | 35.5 |
| Bust | 30.5 | 31.5 | 32.5 | 34.5 | 36.5 | 38.5 | 40.5 |
| Waist | 24.5 | 25 | 26.5 | 28.5 | 30.5 | 32.5 | 34 |
| Hip | 35 | 35.5 | 37 | 39 | 41 | 43 | 45 |
Kids
Atmosea Kids is sized by age, with body measurements to check against. Measure on the body and match to the chart below.
| Size (ages) | Chest | Waist | Hip | Height |
|---|---|---|---|---|
| 0 | 5019.5 | 4919.5 | 5220.5 | 7429 |
| 1 | 5421.5 | 5321 | 5622 | 8433 |
| 2 | 5622 | 5421.5 | 5823 | 9236 |
| 3 | 5823 | 5521.5 | 6023.5 | 10039.5 |
| 4–6 yrs | 6224.5 | 5722.5 | 6425 | 11043.5 |
| 6–8 yrs | 6726.5 | 5923.5 | 6927 | 12047 |
| 8–10 yrs | 7228.5 | 6124 | 7429 | 13051 |
| 10–12 yrs | 7730.5 | 6325 | 7931 | 14055 |
| 12–14 yrs | 8232.5 | 6525.5 | 8433 | 15059 |
How to measure
To find the perfect Atmosea fit, simply put on your favourite underwear and measure yourself directly on your body. Take care to wear a really splendid-fitting bra.
- Bust
- Measure around the fullest part of your bust while wearing a bra that fits.
- Under bust
- Measure around your ribcage directly beneath your bust.
- Waist
- Measure around the narrowest point of your waist.
- Hips
- Measure around the fullest part of your hips (seat).