Men's Moab Adventure 3 Waterproof vs Men's Killington Trekker Sneaker Boots: which is safer?

Where these two actually differ

• We flag Formaldehyde resins in adhesives, Azo dyes in synthetic leather coloring, DWR coating degradation and reapplication risk and Unknown waterproof coating composition (PFAS proxy) on the Merrell and not on the Timberland.
• We flag PTFE and fluorocarbon microparticle shedding, Formaldehyde resins in leather tanning and finishing, Azo dye residues in nubuck finish and Adhesive and glue volatiles at seams on the Timberland and not on the Merrell.
• The Merrell is Synthetic leather/nubuck upper with DWR waterproof coating where the Timberland is Leather, nubuck, rubber sole with waterproof treatment, 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.