Men's Intense Power Sport Tee vs Men's Stride Performance Long Sleeve Shirt: which is safer?

Where these two actually differ

• We flag Azo dyes and synthetic colorants, Heavy metals in pigments and Fragrance allergens or residual chemical odors on the Calvin Klein and not on the Reebok.
• We flag Formaldehyde releasers in textile finishing, Azo dyes and heavy metals in colorants, Skin irritation from dye and finish residues and Microfiber shedding during wear and wash on the Reebok and not on the Calvin Klein.
• The Calvin Klein is Cotton-blend knit jersey, uncoated where the Reebok is Polyester blend performance fabric, 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.