HOME DOLFIN WOMEN'S COLLECTION WOMEN'S COMPETITION SWIMSUITS WOMEN'S FIRSTSTRIKE ROYAL OPEN BACK KNEE SUIT

Women's FirstStrike Royal Open Back Knee Suit Style #0A30SLD-475

FirstStrike is FINA approved and USA Swimming approved for all ages, making it a great choice for any swimmer, especially those 12 and under. Providing zoned muscle control and energy return, swimmers are competition ready in this lightweight racing suit.

Fabric Benefits:
  • UPF 50+ protection from the sun
  • Hydrophobic Fabric with 3D Print Design
  • Durable Warp Knit Fabrication
  • Engineered Flat-Lock Construction
  • Chlorine Resistant
  • Quick Drying
  • Piling Resistant
  • Water Repellent
  • Silicone strip around leg for a secure fit

Design Features:
  • Royal blue suit color with pattern detail on leg
  • 3D Fit engineered to provide the ultimate range of movement
  • Muscle Control
  • Low Profile
  • Comfort straps for optimal support

Fabric: 71% Micro Nylon / 29% Xtra Life Spandex

Additional Details:
  • Featured model is wearing size 28, and is 5 ft., 2 in

Care Instructions:
  • Hand wash in cold water after each use with mild soap. Do not use bleach, detergent, or fabric softeners. Hang dry away from heat. Do not iron or dry clean.


Dolfin FirstStrike suits are approved for swimmers ages 12 and under with USA Swimming®. Please note, that while approved by USA Swimming, the USA Swimming official green check mark sticker may not be included on all FirstStrike suits. If you receive a suit without the USA Swimming official green check mark sticker, you can still wear the suit in competition, per USA Swimming. The FINA approved sticker is on all suits.
Product Details
FirstStrike is FINA approved and USA Swimming approved for all ages, making it a great choice for any swimmer, especially those 12 and under. Providing zoned muscle control and energy return, swimmers are competition ready in this lightweight racing suit.

Fabric Benefits:
  • UPF 50+ protection from the sun
  • Hydrophobic Fabric with 3D Print Design
  • Durable Warp Knit Fabrication
  • Engineered Flat-Lock Construction
  • Chlorine Resistant
  • Quick Drying
  • Piling Resistant
  • Water Repellent
  • Silicone strip around leg for a secure fit

Design Features:
  • Royal blue suit color with pattern detail on leg
  • 3D Fit engineered to provide the ultimate range of movement
  • Muscle Control
  • Low Profile
  • Comfort straps for optimal support

Fabric: 71% Micro Nylon / 29% Xtra Life Spandex

Additional Details:
  • Featured model is wearing size 28, and is 5 ft., 2 in

Care Instructions:
  • Hand wash in cold water after each use with mild soap. Do not use bleach, detergent, or fabric softeners. Hang dry away from heat. Do not iron or dry clean.


Dolfin FirstStrike suits are approved for swimmers ages 12 and under with USA Swimming®. Please note, that while approved by USA Swimming, the USA Swimming official green check mark sticker may not be included on all FirstStrike suits. If you receive a suit without the USA Swimming official green check mark sticker, you can still wear the suit in competition, per USA Swimming. The FINA approved sticker is on all suits.
Fit & Size

How to Measure

When an athlete's measurement contains a partial inch, always round up to the next full inch. If an athlete's measurements fall across two sizes, order the larger size.

  1. Chest Measurement

    Measure the chest with arms at the side. Be sure to take the measurement at the fullest part of the chest.
  2. Waist Measurement

    Measure the waist at the natural waistline which is the narrowest part of the waist. If you're having trouble locating the natural waist, have the athlete bend to the side. The natural waist is where the body bends.
  3. Hip Measurement

    Take the hip measurement at the fullest part of the buttocks with the athlete's feet together.
  4. Torso Measurement

    Take the torso measurement from the center of the shoulder, down the torso, through legs, and back to the shoulder.
  5. Inseam Measurement

    Take the leg inseam measure the athlete without shoes by running the tape from the crotch to one inch above the floor.
Sizing Illustration

The goal of measuring is to determine the correct size to order for each athlete. Accurate measurements are vital to the proper fit of your athlete's apparel. Please make sure that all athletes are wearing fitted workout apparel during the measurement session.


Fabric Care
  • Do not machine wash or use detergents
  • Gently rinse in clear cold water immediately after use
  • Hang to dry out of direct sunlight
Shipping & Returns

For more information on our shipping click here

Dolfin Swimwear gladly accepts customer returns provided the following conditions are met:

  • All return requests must be sent no more than 30 days after shipment of merchandise.
  • Returns must be processed through Returns (dolfinswimwear.com) in order to be accepted.
  • Merchandise must not have been worn or laundered and must have all hang tags and sew-in tags attached in their original position and condition.
  • The customer is responsible for all shipping charges.

Stock items ordered with embellishments are considered customized and are non-returnable. The exception to this is in the case of a Manufacturers error or defect (Refer to Returns: Special Order Items section for more information.)


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