"The Butterfly Effect” Limited Edition Men’s Jammer
"The Butterfly Effect” Limited Edition Men’s Jammer
Performance with purpose.
This limited-edition men’s jammer was created in support of Children’s Hospital Los Angeles and their Make March Matter campaign — helping fund critical care, innovative research, and life-saving treatment for children and families.
Designed for serious training sessions and race-day performance, this jammer delivers a compressive, streamlined fit without sacrificing comfort. Built from premium eco-friendly Italian fabric made from recycled fishing nets, it’s engineered to go the distance — in and out of the water.
Every lap carries impact.
Produced in small batches and designed to represent strength, resilience, and community, this piece allows athletes to show up for more than just their own goals.
Featuring:
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Streamlined, compressive fit for reduced drag
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Ergonomic panel construction for unrestricted movement
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Shape-retention technology for long-lasting support
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Chlorine-resistant fabric for extended durability
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Premium sustainable fabric: 80% Recycled PA, 20% Elastolefin
A generous portion of every sale supports Children’s Hospital Los Angeles.
Train hard. Swim strong. Make March matter.

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Measuring Tips to Assure The Best Fit

Hips
With feet together, run a tape measure around the fullest part of your hips/seat, about 7 to 8 inches below your waistline.
In between sizes?
We recommend that you go a size up.
Men's Sustainable Swimwear Sizing Guide
| Size | Hips (in) | Hips (cm) |
|---|---|---|
| 20 | 23.6 | 60 |
| 22 | 25.5 | 65 |
| 24 | 27.5 | 70 |
| 26 | 29.5 | 75 |
| 28 | 31.4 | 80 |
| 30 | 33.4 | 85 |
| 32 | 35.4 | 90 |
| 34 | 37.4 | 95 |
| 36 | 39.3 | 100 |
| 38 | 41.3 | 105 |
| 40 | 43.3 | 110 |
Dimensions are given in inches + centimeters.
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