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Sale 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
    • 22
    24
    26
    28
    30
    32
    34
    36
    38
    40
    42
    44
  • Dress Size
    (US)
  • Y10
  • 0 | 2
  • 2 | 4
  • 4 | 6
  • 6 | 8
  • 8 | 10
  • 10 | 12
  • 12 | 14
  • 14 | 16
  • 16 | 18
  • 18 | 20
  • 20 | 22
  • Torso
    (in)
  • 50-52
  • 53-55
  • 57
  • 58.5
  • 60
  • 61.5
  • 63
  • 64.5
  • 66
  • 67.5
  • 69
  • 70.5
  • Cup Size
    (in)
  • AA
  • A
  • B
  • C
  • C
  • C | D
  • Waist
    (in)
  • 23-24
  • 24-25
  • 25-26
  • 27-28
  • 29-30
  • 31-32
  • 33-34
  • 35-36
  • 37-38
  • 39-40
  • 41-42
  • 43-44
  • Hip
    (in)
  • 30-32
  • 33-34
  • 35-36
  • 37-38
  • 39-40
  • 41-42
  • 43-44
  • 45-46
  • 47-48
  • 49-50
  • 51-52
  • 53-54
  • Over Bust
    (in)
  • 27-28
  • 29-30
  • 31-32
  • 33-34
  • 35-36
  • 37-38
  • 39-40
  • 41-42
  • 43-44
  • 45-46
  • 47-48
  • 49-50

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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Why You'll Love it

The suit that changed the perception of performance swimsuits.

  • Made in the best compressive swimwear fabric
  • Our innovative adjustable tie-back design allows for both a secure and comfy fit
  • Comes in 15+ colors
  • Superior tightly knit and compressive fabric that won't stretch out compared to lower-cost competitors

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-Full Coverage

    Medium-Full Coverage

    Rounds across the butt with a regular to high cut at the leg opening

  • UPF 50+

    UPF 50+

    Stay protected during long days in sun

As seen in

We take design seriously.

We take design seriously.

1. Tie-back fastening system

Our iconic tie-back lets you create your perfect fit. Loosen when you want to take it easy, tighten when you're ready for the fast lane.

2. Double fold binding

This super durable construction can withstand hours of stretching and pulling in very harsh elements like chlorine and sun.

3. Reinforced stitching

We use bar tacks at major stress points - the neck, back, and where hems start and stop to prevent unraveling.

4. Chlorine-Proof

Our signature Foreverever fabric won't breakdown and is highly fade resistant.

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

Other Products In This Print

The one piece swimsuit with over 1,000 Review star Review star Review star Review star Review star reviews

Review star Review star Review star Review star Review star

This is the most flattering and comfy practice suit I have ever bought!

Review star Review star Review star Review star Review star

Only swimsuit for training that doesn't rub! Game changer!

Review star Review star Review star Review star Review star

I get so many compliments and people asking where I buy my swimsuits. The quality is unmatched. I have some for many years and they still look brand new.

Review star Review star Review star Review star Review star

Tie back is cute and comfortable. Since I got my first JOLYN, no other company has compared to it.

What's Your Suit Personality?

Looking for something else? We’ve got you covered.

Team Captain

Strong But Make It Cute

Weekend Warrior

Hot Girl Summer
Shop Training One Piece Swimsuits Shop Training Bikinis Shop Surf Swimsuits Shop Vacation-Ready Suits

Team Captain

Strong But Make It Cute
Shop Training One Piece Swimsuits Shop Training Bikinis

Weekend Warrior

Hot Girl Summer
Shop Surf Swimsuits Shop Vacation-Ready Suits
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