Do Gap sports performance undergarments have PFAS?
Gap sports performance undergarments average 65 out of 100 on PFAS Authority's PFAS and toxin screen across the 6 Gap sports performance undergarments graded as of October 2026, above the 59 out of 100 median for the 12 other sports performance undergarments brands graded alongside it.
Gap sports performance undergarments average Good on our four-band scale. None of them clear our buy threshold. That is above 83% of the sports performance undergarments 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
Gap
Women's Breathe Hipster Underwear 3-Pack
- cotton, elastane blend, uncoated fabric
- We found no PFAS statement from the brand
- Formaldehyde / VOCs, Gap does not publish chemical test results or restricted substance list compliance for…
3 hazards checked on this product. See all of them.
Gap
Men's 5" Boxer Briefs
- Cotton blend, elastic waistband
- We found no PFAS statement from the brand
- Azo dyes and colorant allergens, Cotton-blend garments at Gap's production scale typically use disperse or…
3 hazards checked on this product. See all of them.
Gap
Men's 5" Breathe Boxer Briefs
- cotton/polyester blend, no mentioned water-repellent coating
- We found no PFAS statement from the brand
- Formaldehyde / VOCs, Cotton-polyester blends may receive low-level formaldehyde-based resin finishes (for…
3 hazards checked on this product. See all of them.
Gap
Women's Breathe Hipster
- Cotton blend hipster underwear, no reported treatment
- We found no PFAS statement from the brand
- Azo dyes and colorant allergies, Cotton-blend underwear often uses azo dyes for color. While the dyes are…
4 hazards checked on this product. See all of them.
Gap
Women's Breathe Shorty
- Cotton blend (breathable apparel, no water-resistant treatment stated)
- We found no PFAS statement from the brand
- Formaldehyde / VOCs, Cotton blends often receive formaldehyde-based finishes to improve wrinkle resistance…
3 hazards checked on this product. See all of them.
Gap
Women's Breathe Bikini by Gap
- nylon/elastane blend, no evident water-resistant treatment
- We found no PFAS statement from the brand
- Formaldehyde / VOCs, Nylon fabrics may carry formaldehyde-releasing resin finishes used in dyeing and sizing.…
3 hazards checked on this product. See all of them.
The same question, asked of the other sports performance undergarments brands
Best average grade first. Gap averages 65.
See every Gap product we grade on the Gap brand page, or the full sports performance undergarments ranking.