Men's Back Step Shirt vs Men's Farrier's Work Shirt: which is safer?

Where these two actually differ

• We flag Azo dyes and color fugacity, Formaldehyde-based finishing resins, DWR finish composition (unverified) and Microplastic shedding on the Patagonia and not on the Patagonia.
• We flag Formaldehyde releasers in durable-press resins and Chemical off-gassing or skin irritation from finish residues on the Patagonia and not on the Patagonia.
• The Patagonia is Recycled polyester with DWR finish where the Patagonia is Organic cotton, standard construction, which is most of the difference in these two grades.
• The gap is 45 points, wide enough that this is not a close call, and the Patagonia is the one to buy.
• We are less certain about the Patagonia grade, at 45% confidence against 72%, because it discloses less.