IMPORTANT: these suits feature a larger global logo which is NOT NCAA or High School competition compliant. It IS compliant for USA Swimming and FINA competition. Do not use for NCAA or High School competition or risk disqualification.

Signature Collection: a limited edition print from arena's 50th Anniversary Signature collection, designed in collaboration with arena's elite team, featuring individual golden prints to represent their spirit.

Sarah Sjöström:

Freedom and strength are the feelings that Sarah Sjöström strives for in her swimming, which is why the eagle is her totem animal. A gold graphic of the regal bird's wing decorates our tech suit dedicated to the elite athlete.

The Carbon Core FX returns.

Feel The Power – The Carbon Core FX is our most compressive race suit, with a locked-in feel and strong all over compression.

If you liked the Carbon Flex and Carbon Flex VX, you will love the Carbon Core FX. Offering a tight feel and exceptional core support. Increased lining provides more compression while double-taping down the back offers better body position.

Fit Guidance:
  • We recommend to start with your training suit size and order the Core FX one size smaller.
  • Fit questions? Contact our expert Customer Service team at our Portland, OR headquarters. email:
  • See our size chart for specific guidance on body measurements.
  • Carbon Fiber Technology to deliver the perfect combination of power, flexibility, and durability
  • Carbon Cage technology for long-lasting muscle compression
  • Twin-taping along the legs lift and assist the body in staying high and horizontal in the water
  • Internal taping and lining keeps your core supported and stable
  • Slim opening designed in the lining offers optimized upper body mobility
Gender Woman
Product-ID 006336_900

Material composition

52% Polyamide 47% Elastane 1% Carbon Fiber

Care Instructions

In order to ensure that your Arena swimsuit provides you with the best possible performance for a long time to come, we recommend you take the following precautions:

  • rinse immediately after use, in non-chlorinated water;
  • do not leave the wet swimsuit in a bag or other container for a long time;
  • do not expose the wet swimsuit in a bag or other container to direct sunlight;
  • wash with detergents suitable for delicate clothes;
  • air-dry away from heat sources.

Follow the washing instructions given on your product label.
The label provides useful symbols giving information on how to take best care of it.







Powerskin Carbon Core FX Limited Edition Sarah Sjostrom Closed Back - NOT NCAA/High School compliant

Muscle compression Body stability Powerful performance

Our sizes are based on US sizing system

Shipments and returns

  • Free shipping on $49+ orders
  • 60 days returns, free and easy