KingFoam · Synthetic Athletic Insoles & Orthotics
KingFoam Elite Quantum Heel Insoles
Unknown coating raises concern; no brand disclosure available.
This insole's foam base and finish aren't publicly detailed. You won't find PFAS claims or independent testing, so the material risk stays unclear.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Foam (likely polyurethane or EVA), unspecified coating/finish
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
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What KingFoam Elite Quantum Heel Insoles is made of, ingredients and materials
KingFoam Elite Quantum Heel Insoles are foam-based, likely polyurethane (PU) or ethylene-vinyl acetate (EVA), both common in cushioning footwear. The 'coating/finish' is unspecified by the brand, which is a transparency gap since coatings can be the primary source of volatile organic compounds (VOCs) and chemical leaching in foam products. The material itself is not inherently toxic, but degradation over time and heat exposure (from foot friction and warm environments) can accelerate off-gassing of residual solvents and blowing agents used in foam manufacture.
What’s concerning
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Unknown / proprietary coating
A coating is recorded with no disclosed chemistry.
VOC off-gassing from foam manufacturing residues
Polyurethane and EVA foams retain volatile blowing agents and solvents from production; unspecified coating compounds may increase cumulative VOC load. No off-gassing data or low-VOC certification published by Samson for this product.
Foam degradation and microparticle shedding
Foam insoles naturally compress and fragment with use, especially under warm, moist conditions inside shoes. Lack of disclosed durability standards or material stability data means expected lifespan and degradation products are undefined.
Contact dermatitis or skin sensitization from adhesives or finishing agents
Foam insoles typically use contact adhesives and primer coatings to bond layers; these can contain isocyanates or other sensitizing agents. Samson does not disclose adhesive chemistry, creating risk for individuals with known sensitivities.
PFAS
Unspecified coating material raises concern that water-resistant or soil-resistant finishes may contain PFAS or other persistent coatings; brand silence on this topic is significant given industry prevalence of such treatments in foam footwear.
Source, ATSDR ↗What’s reassuring
Heavy metals
No public reports of heavy metal contamination in Samson insole coatings or EVA/PU foams. However, unspecified coating identity prevents confirmation of chemical composition, so absence of evidence is not evidence of absence.
Source, FDA ↗How is this PFAS grade calculated?
The brand's record and disclosure
Samson has not publicly disclosed material safety certifications, chemical composition, or PFAS testing status for this product line. No independent recall history or safety controversies have been documented for this specific SKU in public databases. The lack of voluntary disclosure on coating materials and finishing agents is notably absent from their marketing and product documentation, limiting third-party assessment of chemical risk.
How it compares in its category
Foam insoles vary widely in chemical safety; premium brands often disclose polyurethane certifications (e.g., Cradle to Cradle, OEKO-TEX) or specify EVA purity and low-VOC coatings. KingFoam Elite Quantum lacks such certifications on public record, placing it in the mid-market transparency tier. The 'Quantum' marketing language suggests performance engineering but does not indicate material safety or chemical purity standards.
If you buy it
Air out new insoles for 24-48 hours before insertion into shoes to reduce acute VOC exposure from manufacturing residues. Avoid prolonged heat exposure (do not store in hot cars or near heat sources) as this accelerates foam degradation and off-gassing. Replace insoles every 12-18 months or when visible compression, crumbling, or chemical odor occurs, as degraded foam may increase microparticle shedding into footwear. Monitor for skin irritation or respiratory symptoms during the first week of use; discontinue if unexplained reactions develop.
What is not known about PFAS in this product?
- Basis
- Model estimate, 35% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- KingFoam has made none
Formulations change between production runs, so check the current label. How we grade.
What are the PFAS-free alternatives to KingFoam Elite Quantum Heel Insoles?
Cotton Insole
- Cotton with possible latex or synthetic backing
- We found no PFAS statement from the brand
- Adhesive/backing composition (unknown)
2 hazards checked on this product, all on its full breakdown.
Find an alternative on Amazon
Addias Men's Ortholite Comfort Insoles
- Ortholite cushioning foam, polyurethane base
- Volatile organic compounds (VOCs) from polyurethane
3 hazards checked on this product, all on its full breakdown.
Find an alternative on Amazon
- EVA foam, mesh textile lining
- Azo dyes in mesh textile
3 hazards checked on this product, all on its full breakdown.
Find an alternative on AmazonMore synthetic athletic insoles & orthotics grades
How we score, every product runs through the same public 0-100 rubric based on materials, coatings, brand disclosure, lab findings, and recalls. See the full methodology → Spotted a mistake? Report an error.