Boys' School Uniform Short Sleeve Polo Shirt vs Wonder Nation Girls Shirts & Tops Wonder Nation School Uniform Interlock Short Sleeve Polo Shirt: which is safer?

Where these two actually differ

• We flag Azo dyes and color fastness, Formaldehyde in fabric finishes and Microplastic shedding on the Izod and not on the Walmart.
• We flag Azo dyes and colorant residues, Pilling and fiber shedding and Heavy metals in synthetic dyes and pigments on the Walmart and not on the Izod.
• Both carry a flag for Antimony in polyester, so neither choice avoids it.
• The Izod is cotton/polyester blend, no stated coating where the Walmart is Cotton-polyester interlock blend, 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.