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Nike Swoosh Medium-Support Sports Bra

Common questions

Is Nike Swoosh Medium-Support Sports Bra healthy?

Nike Swoosh Medium-Support Sports Bra scores 1/100 on Scout's independent analysis of ingredients, additives, and lab results — one of the lower scores in Scout's catalog. Nike Swoosh Medium-Support Sports Bra scores 1/100.

Has Nike Swoosh Medium-Support Sports Bra been lab-tested?

Yes. Nike Swoosh Medium-Support Sports Bra carries an independent laboratory panel from Independent third-party laboratory testing covering 1 contaminant (including BPA (Bisphenol-A)) — the full results are on this page.

How does Nike Swoosh Medium-Support Sports Bra compare to other sports bras?

Nike Swoosh Medium-Support Sports Bra ranks #22 of 23 sports bras in Scout's independent rankings. The current top score in the category is Janus Sports-BH Merino Lightwool 160 Dame at 100/100.

Which ingredients drive Nike Swoosh Medium-Support Sports Bra's score?

In Scout's ingredient-by-ingredient analysis, Polyester (72%), Spandex (28%) are flagged as ingredients of concern. The full breakdown, with why each one matters, is in the Key ingredients section on this page.

Healthy alternatives

100
Janus Sports-BH Merino Lightwool 160 Dame
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Layere Organic Cotton Sports Bra
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Pact Racerback Sports Bra
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Nike Swoosh Medium-Support Sports Bra

Nike
Lab tested
1 Poor

At a glance

Beneficial ingredients 0
Harmful ingredients 2
Owned by Nike, Inc.
Category Sports Bras
Summary

Nike Swoosh Medium-Support Sports Bra scores 1/100. Center for Environmental Health (CEH. Sports bras were a primary tested category in the CEH investigation, and Nike was issued a legal notice. Sports bras hold petroleum-derived fabric in tight, sustained contact with breast tissue for hours, which combined with sweat amplifies dermal BPA uptake. Body fabric is 72% Polyester (≥50% recycled) / 28% Spandex with a 100% polyester pad and lining. Continuously sheds microplastics.

Contaminants 1

Source: Independent third-party laboratory testing

BPA (Bisphenol-A)
Detected
High

Detected at a high level — at or above health-based exposure limits. Regular exposure at this level is a genuine health concern. BPA is an endocrine disruptor that mimics estrogen and disrupts metabolism, growth, development, and reproduction. Sweat and elevated skin temperature during exercise increase dermal uptake. Nike received a CEH legal notice for this product category.

Detected by Center for Environmental Health (CEH) lab testing (October 2022) in this fabric class — polyester-based clothing with spandex.

Key ingredients 2

Polyester (72%)
Very Bad

Petroleum-derived synthetic plastic fiber forming the body and lining. Polyester+spandex is the exact fabric class CEH found BPA in across multiple major activewear brands (Oct 2022 / May 2023 testing). Sheds microplastic fibers with every wash. Worn in maximum skin-to-fabric contact during sweaty exercise, which amplifies absorption of any residual chemical finishes.

See more about Polyester (72%) →
Spandex (28%)
Very Bad

Synthetic polyurethane stretch fiber. Suspected primary BPA carrier in athletic wear — commonly used as a polymerization catalyst or antioxidant during elastane production. Continuously sheds microplastics during washing.

See more about Spandex (28%) →

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