Boys Classic Fit Flat Front Pant vs Boy's Kaynee Unisex' L/S Button-Down Shirt: which is safer?

Where these two actually differ

• We flag Azo dyes and colorants, Antimony in polyester, Heavy metals in dyes and pigments and Residual solvents or sizing agents on the Dickies and not on the Kaynee.
• We flag Azo dyes and colorfast residues, Formaldehyde resins in finishes, Antimony in polyester component and Button and fastener materials on the Kaynee and not on the Dickies.
• The Dickies is cotton/polyester blend, no special coatings where the Kaynee is cotton blend, standard button-down shirt, 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.