Boys' School Uniform Short Sleeve Polo Shirt vs Kids' School Uniform Jersey-Knit Polo Shirt for: which is safer?

Where these two actually differ

• We flag Azo dyes and color fastness, Formaldehyde in fabric finishes, Antimony in polyester and Microplastic shedding on the Izod and not on the Old Navy.
• We flag Azo dyes and reactive dyes, Antimony in polyester fibers and Residual fiber degradation and microfiber shedding on the Old Navy and not on the Izod.
• The Izod is cotton/polyester blend, no stated coating where the Old Navy is Jersey-knit cotton blend, untreated, which is most of the difference in these two grades.
• These two are level, close enough that price and fit should decide it rather than our grade.