Men's 501 Original Thermodapt Jeans vs Men's 511 Slim Jeans Performance Cool: which is safer?

Where these two actually differ

• We flag Azo dyes and color fastness, Formaldehyde residues from finishing and Degradation and microfiber shedding on the Levi's and not on the Levi's.
• We flag PFAS in DWR (durable water repellent) finish, Formaldehyde resins in fabric finishing and Coating degradation and microplastic shedding on the Levi's and not on the Levi's.
• The Levi's is 100% cotton denim, no disclosed water-resistant treatment where the Levi's is cotton/polyester blend with moisture-wicking treatment, 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 Levi's is the one to buy.
• We are less certain about the Levi's grade, at 45% confidence against 72%, because it discloses less.