Arena - Powerskin ST 2.0 Full Body Open Back Kneeskin - Navy
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Arena - Powerskin ST 2.0 Full Body Open Back Kneeskin - Navy


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Take your performance to a higher level with Arena's newest racing design: Powerskin ST 2.0. Arena created ST as a tech swimsuit for competition and training for swimmers of all levels. This upgraded women’s open-back one-piece has a reinforced centre strap for better upper-body support plus the shell fabric and new durable lining offer enhanced compression to targeted areas. Comfort and body stability are built-in with ergonomic flatlock seams in a strategic pattern that lifts you underwater. More resilient and hydrodynamic than ever, we love the edgy look of the contrasting seams. A FINA-approved design. The suit fabric is chlorine-resistant and provides UPF 50+ sun protection.

Composition & Care

71% Polyamide / 29% Elastane.
Hand wash cold, lay flat to dry.

Sizing & Fit

Championship Fit:
- Technical swimwear with maximum compression and the least amount of drag for races and competitions


Open back tech suit.
Racerback with thick straps.
New ergonomic construction increases:
- Core support
- Body lift
- Stability
- Comfort
Helps swimmers keep optimum shape in the water. Extra reinforced shoulder straps enhances upper back comfort and durability. Flatlock seams provide a "perfect fit" feel. Chlorine-resistance. UPF 50+ sun protection.

Stitched Seams



Size Guide:

How to take measurement

  • A - Breast: Take the measurement over the fullest part of your bust.
  • B - Waist: Measure around the narrowest part of your waistline.
  • C - Hips: Measure around the fullest part of your hips.
  • D - Torso loop: In a loop, measure from the highest part of the shoulder, beneath the crotch and then back to the starting point.

Shipping & Returns

Returns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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