Girl's 1-Piece Swimsuit Size Guide

Girl's 1-Piece Swimsuit Size Guide

Find the perfect fit for your custom 1-piece swimsuit. All sizes are Youth (XS through XL).

Fabric & Construction

Shell Fabric

82% Nylon / 18% Spandex with 4-way stretch. Full sublimation print.

Lining

100% Polyester mesh — full front and crotch lining for comfort and coverage.

Construction

4-thread overlock seams with chlorine-resistant elastic at leg openings and neckline.

How to Measure

Chest

Measure around the fullest part of the chest, keeping the tape level.

Waist

Measure around the natural waistline, at the narrowest point.

Hip

Measure around the fullest part of the hips.

Vertical Trunk

Measure from the shoulder, down through the crotch, and back up to the same shoulder.

1-Piece Swimsuit Size Chart (Youth Sizes)

Size Height (in) Weight (lb) Chest (in) Waist (in) Hip (in) Vertical Trunk (in)
XS 43 - 45 37 - 43 23.0 20.75 24.25 39.0
S 47 - 49 50 - 56 25.25 22.5 26.25 42.25
M 52 - 54 65 - 74 27.5 24.0 28.5 46.5
L 54 - 58 72 - 88 28.5 - 30.0 25.0 30.0 48.0 - 50.5
XL 58 - 61 88 - 105 31.5 - 33.0 26.5 - 28.0 33.0

Fit Tips

  • Between sizes? We recommend sizing up for a more comfortable fit.
  • Vertical trunk is the most important measurement for a 1-piece — it determines the torso length and prevents the suit from riding up or feeling too loose.
  • These suits stretch! The 4-way stretch fabric provides a snug, athletic fit that moves with the body.
  • Custom made to order — please allow 3-4 weeks for delivery.

Need Help Choosing a Size?

We're happy to help! Text or call us and we'll make sure you get the perfect fit.

1-877-411-1822 (Phone and Text support)