• FINA Approved
  • Web Exclusive

Core FX Closed Back – USA Athlete Authentic Limited Edition - NOT NCAA/High School compliant

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2021 Race Suits

Only %1 left
52% Polyamide 47% Elastane 1% Carbon Fiber


25% off sitewide w/ code md25, including sale items

  • FINA Approved
  • Web Exclusive

Super limited edition: we made a few extras of the same suits our arena athletes are competing with in Tokyo. These are the authentic athlete versions in limited quantities, only available on the arena website while they last.

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.

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? Call our expert Customer Service team at our Portland, OR headquarters: 1-888-902-7362, or email: customerserviceUSA@arenasport.com
  • 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

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.