Arena - Women’s Powerskin ST Next Open Back - Aquamarine
Features and Description
Our Women’s Open Back Powerskin ST Next is the world’s first FINA-approved tech suit to include recycled fabric in its design.
Over 60% of the material used comes from pre and post-consumer textile waste that would have otherwise ended up in landfills. This revamped version of the ST is longer lasting and 20% lighter for faster swimming and minimal drag.
With flatlock seams and reinforced shoulder straps, experience comfort, support and a lifted feeling in the water. Designed for the optimal balance of compression and ease of use, it is the perfect entry-level tech suit or advanced training swimsuit.
Available in a range of cool contemporary colours.
005873 (C681)
Shipping and Returns
Easy 30 days returns and free exchanges!
We aim to make your shopping experience as smooth as possible. We offer straightforward returns if you're not completely satisfied with your purchase.
To begin your return please click on to the Returns & Exchange Portal located on the front page of our website and follow the simple steps.
- Goggles are exchange only
- Underwear and Hats are non refundable and non exchangeable
- Check out our returns policy for more details
Title

| BODY MEASUREMENTS | |||||||
|---|---|---|---|---|---|---|---|
| AFULL BUST (cm) | 78-84 | 84-89 | 89-94 | 94-98 | 98-102 | 102-106 | 106-108 |
| BWAIST (cm) | 62-66 | 66-70 | 70-74 | 74-78 | 78-82 | 82-86 | 86-88 |
| CHIPS (cm) | 80-85 | 85-90 | 90-95 | 95-100 | 100-105 | 105-110 | 110-115 |
| DTORSO LOOP (cm) | 136-143 | 146-153 | 156-163 | 166-173 | 171-178 | 176-183 | 181-186 |
| SIZE CHART | |||||||
| UK | 22 | 24 | 26 | 28 | 30 | 32 | 34 |
| INTERNATIONAL SIZE | 28 | 30 | 32 | 34 | 36 | 38 | 40 |
| FRANCE | 28 | 30 | 32 | 34 | 36 | 38 | 40 |
| ITALY | 32 | 34 | 36 | 38 | 40 | 42 | 44 |
| GERMANY | 26 | 28 | 30 | 32 | 34 | 36 | 38 |
| US | 22 | 24 | 26 | 28 | 30 | 32 | 34 |
| AUSTRALIA | 0 | 2 | 4 | 6 | 8 | 10 | 12 |
Primo
| BODY MEASUREMENTS | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| AFULL BUST (cm) | 78-84 | 84-89 | 84-89 | 89-94 | 89-94 | 94-98 | 94-98 | 98-102 | 102-106 | 106-108 |
| BWAIST (cm) | 62-66 | 66-70 | 66-70 | 70-74 | 70-74 | 74-78 | 74-78 | 78-82 | 82-86 | 86-88 |
| CHIPS (cm) | 80-85 | 85-90 | 85-90 | 90-95 | 90-95 | 95-100 | 95-100 | 100-105 | 105-110 | 110-115 |
| DTORSO LOOP (cm) | 136-143 | 143-148 | 149-154 | 154-159 | 160-165 | 165-170 | 171-176 | 171-178 | 176-183 | 181-188 |
|
POWERSKIN PRIMO SIZE CHART |
||||||||||
| UK | 22 | 24 | 24 | 26 | 26 | 28 | 28 | 30 | 32 | 34 |
| INTERNATIONAL SIZE | 28 | 30 | 30 | 32 | 32 | 34 | 34 | 36 | 38 | 40 |
| FRANCE | 28 | 30 | 30 | 32 | 32 | 34 | 34 | 36 | 38 | 40 |
| ITALY | 32 | 34 | 34 | 36 | 36 | 38 | 38 | 40 | 42 | 44 |
| GERMANY | 26 | 28 | 28 | 30 | 30 | 32 | 32 | 34 | 36 | 38 |
| US | 22 | 24 | 24 | 26 | 26 | 28 | 28 | 30 | 32 | 34 |
| AUSTRALIA | 0 | 2 | 2 | 4 | 4 | 6 | 6 | 8 | 10 | 12 |
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These are lovely race suits, but we found that the sizing is very small. Following Arena's guidance on all of the measurements, our daughter was showing as between a size 22 and 24. So we bought a 26 because we had read similar comments previously. This was too small, so we returned and ordered a size 28 which was perfect!
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Continue shoppingFAQs
How do I know I’m choosing the right size?
Finding the right size swimming costume is difficult. The size chart is the most important. Measure acording to the guidlines. If you are inbetween 2 sizes then the most important measurement is the waist.
You are welcome to try on in our London store. If you are too far away then do not worry as you can always return or exchange your item.
How is it meant to fit?
Swimming costumes need to be skin tight. if they are baggy then this will slow you down in the water and move around your body causing discomfort.
Racing suits are designed to fit very tight as one of the key benefits is compression.
Can I return or exchange?
No problem! Easy 30 days returns and free exchanges.
Please ensure the product is unused, with tags
To begin your return please click on to the Returns & Exchange Portal and follow the simple steps.
*Goggles are exchange only
*Underwear and Hats are non refundable and non exchangeable
Check out our returns policy for more details.
How quickly will my order arrive?
We typically dispatch within 24 hours of order on working days and give you express shipping options at checkout.
If you need it quickly you can select Next Day Delivery at checkout if you order before 2pm.
For our free delivery over £50 service we aim for 3-7 days.
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