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Free shipping to contiguous US on orders $90+

Jackson 4 Swim Onesies

$19.99
$19.99
Color:
Size:
Size Chart

One Piece Swimsuit
Size Guide

Torso measurement is most important for finding your accurate one piece size.

If you are in between torso measurements or know your torso runs long we recommend sizing up!

  • JOLYN One Piece
    Size
    • 26
    XS
    28
    XS - S
    30
    S - M
    32
    M - L
    34
    L - XL
    36
    XL
    38
  • Dress Size
    (US)
  • 0, 2, 4
  • 2, 4, 6
  • 4, 6, 8
  • 6, 8, 10
  • 8, 10, 12
  • 10, 12, 14
  • 12, 14, 16
  • Torso
    (in)
  • 58.5
  • 60
  • 61.5
  • 63
  • 64.5
  • 66
  • 67.5
  • Waist
    (in)
  • 25-27
  • 27-29
  • 29-31
  • 31-33
  • 33-35
  • 35-37
  • 37-39
  • Hips
    (in)
  • 34-36
  • 36-38
  • 38-40
  • 40-42
  • 42-44
  • 44-46
  • 46-48
  • Bust
    (in)
  • 31-32
  • 33-34
  • 35-36
  • 37-38
  • 39-40
  • 41-42
  • 43-44

Measurement Guide

Torso

Measure from the top of your shoulder over the fullest part of your bust, through your legs back up to starting point

Bust

Measure around the fullest part at the bust

Waist

Measure around the smallest part of the waist

Hips

Keep measuring tape parallel to the floor and measure around the fullest part of the hip

Jolyn swimwear, a woman with measurement arrows and guide
Jolyn swimwear, wavy line

Fit Questions?

If you want a second opinion or need help figuring out your size, reach out to us at hi@jolyn.com and we’ll sort you out!

Quantity:
Free shipping on domestic orders $90+!
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Details

One of our most classic styles, the Jackson training one piece swimsuit is better than ever with our fourth design update. (Hey - we never stop listening to your feedback on making the best suits we can!)

This version is raised over the apex, aka, more length coverage for your torso. The more rounded neckline shape stays even flatter when in streamline and a single binding loop adds a minimalist finish we love. 

As always, the Jackson provides medium/full bum coverage and the adjustable tie-straps give you the perfect fit for the moment—loose for comfort or snug for speed. 

 Features:

  • Good for: Swimming, water polo, lifeguarding, paddling, ocean and pool activities
  • Tie-Back one-piece swimsuit
  • Medium / Full Coverage
  • Coverage 4
  • Unpadded
  • Lined for maximum privacy
  • Tagless for maximum comfort
  • Chlorine proof
  • 2-way stretch
  • Reinforced stitching

Fabric Composition:

Care Instructions:

  • Hand wash cold
  • Hang dry
  • Do not iron, dry clean or bleach 

 JOLYN does not recommend tie straps to be used in racing or FINA sanctioned events. Fastening systems including ties are not allowed in competition, as per FINA regulations.

    Shipping & Returns

    • Free standard shipping on domestic orders over $90

    • Standard shipping takes about 5 - 7 business days

    • We allow returns within 30 days for refunds and 45 days for store credit. Read our full return policy here

    Features

    • High impact

      High impact

      Made for the highest level of activity

    • Foreverever Fabric

      Foreverever Fabric

      Our classic bestselling fabric loved by athletes for its durability

    • Medium Coverage

      Medium Coverage

      Sits diagonally across the bum

    • UPF 50+

      UPF 50+

      Stay protected during long days in sun

    Foreverever swimwear fabric icon

    Foreverever Fabric

    Our cult favorite original performance fabric beloved by top tier athletes. Built for durable, reliable performance.

    Best For
    Training, high intensity activity
    Chlorine Resistance
    Chlorine proof
    Stretch Level
    Minimal stretch
    Fit
    Fits snug to reduce drag, recommend sizing up
    Handfeel
    Soft, sturdy, durable

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