Stain Resistant Necktie Silk Blue Polo Horse vs Perry Ellis Men's Paddon Micro Slim Necktie: which is safer?

Where these two actually differ

• We flag Formaldehyde-releasing resins in stain-resistant finish, Volatile organic compounds (VOCs) from finish or dyes and PFAS in stain-resistant treatment on the Brooks Brothers and not on the Nano-Tex.
• We flag Azo dyes and colorant toxicity, Heavy metals in pigments and Fragrance allergens or dye transferability on the Nano-Tex and not on the Brooks Brothers.
• The Brooks Brothers is Silk with stain-resistant treatment (composition unspecified) where the Nano-Tex is silk or silk-blend woven tie, no water/stain treatment claimed, which is most of the difference in these two grades.
• The gap is 40 points, wide enough that this is not a close call, and the Nano-Tex is the one to buy.
• We are less certain about the Brooks Brothers grade, at 42% confidence against 72%, because it discloses less.