CONFIDENCE STARTS BEFORE THE STARTING BLOCKS

JOLYN is more than just a swimsuit. It empowers women with swimwear that fits, performs, and lasts—so every athlete can focus on swimming, not adjusting. Helping you to perform your best, season after season.

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Jolyn Onesie

Jolyn Onesie

Jolyn Tops

Jolyn Tops

Jolyn Bottoms

Jolyn Bottoms

The Jolyn Girls and their stories


For generations of swimmers, JOLYN has been there through early mornings, personal bests, and unforgettable milestones. Worn by girls who dare to dream, every suit is a reminder that confidence isn't given—it's built, one swim at a time.

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Find your perfect onesie size

Answer a few quick questions to discover your ideal fit

What is your torso length (in inches)?

53-55
57
58.5
60
61.5
63
64.5
66
67.5

What is your waist measurement (in inches)?

24-25
25-26
27-28
29-30
31-32
33-34
35-36
37-38
39-40

What is your hip measurement (in inches)?

33-34
35-36
37-38
39-40
41-42
43-44
45-46
47-48
49-50

Your recommended JOLYN size is: