HOME COLLECTIONS LITTLE DOLFIN COLLECTION LITTLE DOLFIN GIRLS' BUILD ME UP ONE PIECE SWIMSUIT

Little Dolfin Girls' Build Me Up One Piece Swimsuit Style #9810BU-E13

Limited Availability, get it while it lasts!

Get ready for stackable fun in the Little Dolfin Build Me Up One Piece, featuring a colorful building block pattern that’s bursting with playful energy! Bright colors make it easy to spot your swimmer in the water, so they can stack their swim confidence while you're stress-free in the process. Chlorine resistance and UPF 50+ keep the suit strong and sun-safe all season long. Designed with modest coverage and a simple pull-on style, it’s perfect for active days at the pool or beach. Just suit up, splash in, and let the fun begin!

Features & Benefits
  • Little girls' one piece swimsuit in Build Me Up print
  • Signature Uglies candy stripe shown on binding
  • Fully Lined
  • Chlorine resistant
  • Shape and color retention
  • UPF 50+
  • Modest leg cut swimsuit: sits below the hip
  • Easy pull-on fit: No fuss, only fun!
  • Bright colored print for easy visibility in water

Fabric Content: 91% Polyester / 9% Spandex

Match this suit with their swim bestie or the whole family with Women's V-Back One Piece, Uglies Girls' One Piece, Men's Jammer, or Little Dolfin Boys' Swim Trunks.
Product Details

Limited Availability, get it while it lasts!

Get ready for stackable fun in the Little Dolfin Build Me Up One Piece, featuring a colorful building block pattern that’s bursting with playful energy! Bright colors make it easy to spot your swimmer in the water, so they can stack their swim confidence while you're stress-free in the process. Chlorine resistance and UPF 50+ keep the suit strong and sun-safe all season long. Designed with modest coverage and a simple pull-on style, it’s perfect for active days at the pool or beach. Just suit up, splash in, and let the fun begin!

Features & Benefits
  • Little girls' one piece swimsuit in Build Me Up print
  • Signature Uglies candy stripe shown on binding
  • Fully Lined
  • Chlorine resistant
  • Shape and color retention
  • UPF 50+
  • Modest leg cut swimsuit: sits below the hip
  • Easy pull-on fit: No fuss, only fun!
  • Bright colored print for easy visibility in water

Fabric Content: 91% Polyester / 9% Spandex

Match this suit with their swim bestie or the whole family with Women's V-Back One Piece, Uglies Girls' One Piece, Men's Jammer, or Little Dolfin Boys' Swim Trunks.
Fit & Size

Sizing & Measuring (Inches)

SIZE CHEST (IN) WAIST (IN)
2T 20 19-19.5
3T 21 20-20.5
4T 22 21-21.5
4 22 22
5 23 22.5
6 24.5 23.5

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

Dolfin offers fabrics that are produced to meet our exclusive stretch and quality standards. We take tremendous pride in having the best fabrics in the industry. As the leader in performance apparel, it's important for us to advise you of the tendencies of certain fabrics, as well as practices to avoid. Show More

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.)