short sleeve jersey polo red YS Juniors AS (5-6) school vs Boys' School Uniform Short Sleeve Polo Shirt: which is safer?

Where these two actually differ

• We flag Formaldehyde-based finishing resins and Allergenic fiber or dye sensitivity on the Dennis Uniform and not on the Izod.
• We flag Formaldehyde in fabric finishes, Antimony in polyester and Microplastic shedding on the Izod and not on the Dennis Uniform.
• Both carry a flag for Azo dyes and color fastness, so neither choice avoids it.
• The Dennis Uniform is cotton or cotton-polyester blend jersey knit where the Izod is cotton/polyester blend, no stated coating, 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.