59Good

Does Reiss swimwear have PFAS?

The verdict
Reiss swimwear averages 59 out of 100 on PFAS Authority's PFAS and toxin screen across the 8 Reiss swimwear products graded as of October 2026, above the 54 out of 100 median for the 27 other swimwear brands graded alongside it.
Free to quote with attribution to PFAS Authority and a link to pfasauthority.com/brands/reiss/swimwear.

Reiss swimwear averages Good on our four-band scale. None of them clear our buy threshold. That is above 87% of the swimwear brands we grade.

PFAS Authority is a scoring system, not a laboratory. We do not test products ourselves. Grades are model-based, built from published ingredients, materials, certifications, brand disclosures and third-party lab results where they exist. See the rubric.

Graded and flagged Poor and Bad, we’d swap these

Reiss Delta Mesh-Insert Halterneck Swimsuit

Reiss

Delta Mesh-Insert Halterneck Swimsuit

65GoodPFAS grade
  • Nylon/polyamide mesh insert and swimsuit fabric
  • We found no PFAS statement from the brand
  • Heavy metals, The halterneck design suggests color dyeing of the nylon. Azo dyes are not banned in EU or US…

3 hazards checked on this product. See all of them.

Reiss Janina Polka- Dot Bandeau Bikini Top

Reiss

Janina Polka- Dot Bandeau Bikini Top

65GoodPFAS grade
  • Nylon/polyamide blend with elastane
  • We found no PFAS statement from the brand
  • Azo dyes in synthetic colorants, Polka-dot print requires colorfast dyes; nylon readily accepts azo dyes…

4 hazards checked on this product. See all of them.

Reiss Lucia Floral-Print Halterneck Swimsuit

Reiss

Lucia Floral-Print Halterneck Swimsuit

65GoodPFAS grade
  • polyamide (nylon) or elastane blend swimwear
  • We found no PFAS statement from the brand
  • Heavy metals, Floral-print dyes could theoretically contain restricted azo dyes or trace heavy metals (lead…

4 hazards checked on this product. See all of them.

Reiss Maya Plunge Halterneck Swimsuit

Reiss

Maya Plunge Halterneck Swimsuit

65GoodPFAS grade
  • nylon/polyamide blend (typical swimwear)
  • We found no PFAS statement from the brand
  • Formaldehyde / VOCs, Nylon swimwear may contain trace formaldehyde-based resins used for shrinkage control or…

2 hazards checked on this product. See all of them.

Reiss Men's Geometric-Print Swim Shorts

Reiss

Men's Geometric-Print Swim Shorts

65GoodPFAS grade
  • Polyester swim short (likely uncoated)
  • We found no PFAS statement from the brand
  • Azo dyes and colorant migration, Geometric-print polyester swim shorts rely on surface dyeing; non-reactive…

3 hazards checked on this product. See all of them.

Reiss Women's Imogen Hardware-Strap Cut-Out Swimsuit

Reiss

Women's Imogen Hardware-Strap Cut-Out Swimsuit

65GoodPFAS grade
  • nylon/polyester blend (standard swimwear)
  • We found no PFAS statement from the brand
  • Azo dyes and color fastness, Synthetic swimwear relies on azo or reactive dyes. Reiss does not disclose dye…

3 hazards checked on this product. See all of them.

Reiss Women's Luna Underwire Bandeau Cutout Swimsuit

Reiss

Women's Luna Underwire Bandeau Cutout Swimsuit

65GoodPFAS grade
  • Nylon, spandex blend (typical swimsuit construction)
  • We found no PFAS statement from the brand
  • Azo dyes and colorant toxicity, Nylon swimwear is typically dyed with synthetic dyes; some azo dyes can…

3 hazards checked on this product. See all of them.

Reiss Women's Nadine Halterneck Pleat-Detail Swimsuit

Reiss

Women's Nadine Halterneck Pleat-Detail Swimsuit

20BadPFAS grade
  • Nylon/polyester blend with likely water-repellent coating finish
  • We found no PFAS statement from the brand
  • Azo dyes and synthetic colorants in nylon/polyester, Nylon and polyester swimwear are typically dyed with…

5 hazards checked on this product. See all of them.

Better swimwear from other brands

Graded higher than the Reiss average of 59.

Patagonia Women's Bottom Turn Racerback Bikini Top

Patagonia

Women's Bottom Turn Racerback Bikini Top

90ExcellentPFAS grade
  • Nylon/polyester blend with elastane (standard swimwear)
  • The brand calls it PFAS-free, which we have not verified
  • Elastane (spandex) degradation under heat or chlorine
Solid & Striped Taylor One Piece Seersucker Plaid

Solid & Striped

Taylor One Piece Seersucker Plaid

65GoodPFAS grade
  • Cotton/cotton-blend seersucker plaid
  • We found no PFAS statement from the brand
  • Azo dyes and colorfast stability

2 hazards checked on this product. See all of them.

adidas Women's Mexicana Florals Tie-Back Swimsuit

Adidas

Women's Mexicana Florals Tie-Back Swimsuit

65GoodPFAS grade
  • Polyester/nylon swimsuit fabric, likely uncoated or standard finish
  • Azo dyes and synthetic colorants

4 hazards checked on this product. See all of them.

The same question, asked of the other swimwear brands

Best average grade first. Reiss averages 59.

See every Reiss product we grade on the Reiss brand page, or the full swimwear ranking.