Women's Drive Interlace Run Bra vs Women's Air Tech Performance Brief Panties 6-Pack: which is safer?

Where these two actually differ

• We flag DWR finish (likely fluorinated compounds, PFAS class), Formaldehyde resins in dyes and finishes and Elastane (spandex) degradation and microfiber shedding on the Brooks and not on the Reebok.
• We flag Formaldehyde resins in fabric finishing and Elastomer degradation (spandex breakdown) on the Reebok and not on the Brooks.
• Both carry a flag for Azo dyes, so neither choice avoids it.
• The Brooks is nylon, elastane, polyester with DWR finish where the Reebok is nylon, spandex, cotton blend, which is most of the difference in these two grades.
• The gap is 45 points, wide enough that this is not a close call, and the Reebok is the one to buy.
• We are less certain about the Brooks grade, at 45% confidence against 72%, because it discloses less.