Reebok · Synthetic Athletic Insoles & Orthotics
Reebok Stabilize Premium Shoe Insoles, Advanced footwear technology Size Large
Insole materials likely PFAS-free, but Reebok provides no public disclosure.
Shoe insoles typically use foam, textiles, and rubber without intentional PFAS. No water-resistant coating or stain treatment mentioned. Reebok has not published PFAS commitments for this product.
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Material
Foam, textiles, elastomer (unspecified formulations)
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Safe base material
Made from a material with no inherent PFAS use (ceramic, mineral, or natural fiber).
Category baseline
clothing is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
The full breakdown
What it's made of and why it matters
Reebok Stabilize Premium insoles combine cushioning foam (likely EVA or polyurethane) with textile covers and elastomer components for arch support. Foam formulations in athletic insoles typically do not require PFAS water-repellency treatments, though exact resin chemistry is proprietary. The unspecified elastomer blend is the primary unknown; elastomers can contain plasticizers, but insole-grade materials face less chemical leaching risk than food-contact or prolonged skin-contact textiles since insoles sit inside shoes with limited sweat contact.
The brand's record and disclosure
Reebok does not publicly disclose material safety testing or PFAS use policies as of available records. The brand has faced no documented recalls or hazard investigations specific to insole products. Reebok maintains general apparel certifications but provides minimal transparency on individual component chemistry, which is consistent with most athletic footwear manufacturers. No independent testing results for this specific product line are on record.
How it compares in its category
Athletic insoles (both third-party and OEM) rarely carry documented chemical hazards when used as designed. This product sits in the mainstream replacement-insole market alongside brands like Superfeet and Powerstep, which similarly lack detailed public material disclosure. Insoles pose lower chemical-contact risk than footwear uppers or socks because they do not directly contact skin for extended periods and experience minimal moisture migration into the foam core. The unspecified elastomer is slightly more opaque than competitors offering transparent material lists.
If you buy it
Replace insoles every 6-12 months depending on use intensity; foam degrades gradually and loses cushioning rather than posing chemical risk. Avoid machine washing; rinse with cool water and air-dry to preserve material integrity. Store in a cool, dry environment to slow polymer breakdown. Monitor for odor development, which signals mold or bacterial growth in the foam rather than chemical leaching, if this occurs, replacement is the only remedy.
Beyond PFAS: other things we checked
Established hazard classes for this product type, assessed from public information. These never change the PFAS grade; a Likely flag caps the Verdict at “Buy with care.”
Formaldehyde resins in textile cover
Insole textiles typically do not require formaldehyde-releasing finishes. No testing or recalls document this hazard for Reebok insoles specifically.
Azo dyes in textile layer
Insole fabric dyes are not subject to high leaching risk due to limited water exposure inside shoes. No brand-specific incidents reported.
Phthalate plasticizers in elastomer
Unspecified elastomer blend may contain phthalates for flexibility, but insole application involves no ingestion and minimal skin contact. No test data available for this product.
Antimony in polyester components
If polyester is present in cover fabric, antimony catalyst residue is theoretically possible but insole use involves no prolonged skin contact or thermal stress that would trigger leaching.
Bacterial or mold growth from moisture
Foam insoles are prone to microbial colonization if exposed to sweat and poor drying. This is a use-maintenance issue rather than a manufacturing hazard, managed by replacement cycles and air-drying.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 55% confidence. It is not a lab result.
No independent PFAS lab test is on record for this exact product. A lab test could move the score in either direction.
The brand has not made a specific, verifiable PFAS-free statement, so part of this score reflects that missing disclosure rather than a confirmed material.
Formulations and coatings change between production runs. Always check the current label before buying.
More 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.