74 in by 19 in Outdoor Solid Polyester Tufted Chaise Lounge Cushion vs 17" X 17" Replacement Seat Cushion - Knife Edge, Knife-Edge/Aquatic - Grandin Road: which is safer?

Where these two actually differ

• We flag Azo dyes in polyester textiles and Microplastic shedding from fill and cover on the Blazing Needles and not on the Grandin Road.
• We flag Fluorocarbon-based stain-resistance finish (PFAS-class compounds), Microplastic shedding from polyester blend and Coating degradation and chemical release over time on the Grandin Road and not on the Blazing Needles.
• The Blazing Needles is Polyester fill with polyester cover where the Grandin Road is Polyester/cotton blend fabric with stain resistance finish, 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 Blazing Needles is the one to buy.
• We are less certain about the Grandin Road grade, at 45% confidence against 72%, because it discloses less.