Clek · Child Car Seats
Clek Fllo Convertible Car Seat
Lower-concern car seat; no known PFAS risk, but Clek provides no transparency.
The Clek Fllo uses polyurethane foam and polyester fabric without confirmed PFAS-based treatments or coatings. Car seats typically have lower PFAS exposure routes than waterproofed apparel or food packaging.
Shop Clek on Amazon →Material
Polyurethane foam, polyester fabric, polypropylene shell
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Category baseline
furniture is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
Safe base material
Made from a material with no inherent PFAS use (ceramic, mineral, or natural fiber).
The full breakdown
What it's made of and why it matters
The Fllo combines polyurethane foam (cushioning and impact absorption), polyester fabric (upholstery), and polypropylene plastic shell (structure). Polyurethane foam in car seats is engineered specifically for crash energy dissipation and is not known to leach harmful compounds under normal use conditions. The polyester and polypropylene are inert, non-reactive materials commonly used in infant and child seating where chemical stability is critical. None of these materials are classified as food-contact or prone to off-gassing at typical vehicle temperatures.
The brand's record and disclosure
Clek does not publicly disclose detailed material safety certifications or PFAS testing results, which is unusual for a premium brand in this category. The company has not faced documented recalls related to chemical contamination or material degradation. Clek holds JPMA (Juvenile Products Manufacturers Association) certification, which confirms compliance with federal safety standards for car seats but does not specifically address chemical composition transparency. The brand's silence on PFAS and material sourcing is a disclosure gap rather than a known safety failure.
How it compares in its category
The Fllo is positioned as a mid-to-premium convertible seat and competes with models like the Graco Extend2Fit and Britax Pinnacle. Its core materials are similar to competitors, though some higher-tier brands (e.g., Nuna, Cybex) have begun publishing more detailed chemical compliance statements. In terms of chemical hazard reports, the Fllo has no established record of leaching, off-gassing, or degradation issues that would differentiate it negatively from the category norm. Material-wise, it sits comfortably within standard industry practice for convertible seats.
If you buy it
Store and use the seat in normal vehicle conditions; prolonged exposure to extreme heat (above 120F for extended periods) is not ideal for any polyurethane-based seat, but this is not unique to Clek. Inspect the foam and fabric regularly for tears, compression, or staining; replace the seat if structural integrity is compromised or after a moderate-to-severe crash, per manufacturer guidance. Clean with mild soap and water, not harsh solvents, to preserve the polyester fabric. The polyurethane foam does not require special maintenance but will gradually compress over 10+ years of heavy use, which is normal wear, not a safety defect.
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.”
Polyurethane foam off-gassing
No established reports of VOC or chemical off-gassing from the Fllo's foam in normal vehicle use. Polyurethane car seat foam is engineered and tested to minimize volatile release under standard temperature and humidity conditions.
Polyester fabric dye stability and azo dyes
The Fllo uses standard automotive-grade polyester upholstery. No recalls or reports of azo dye contamination or formaldehyde-based dyes have been documented. Fabric meets federal flammability standards, which indirectly suggests controlled dye chemistry.
Polypropylene shell leaching
Polypropylene is one of the most stable plastics and does not leach BPA, phthalates, or other endocrine disruptors under normal vehicle heat or use. No established hazard profile for polypropylene car seat shells.
Foam compression and structural integrity loss
Polyurethane foam in car seats will gradually compress over 8-12 years of regular use, reducing impact absorption capacity. This is expected wear rather than a defect, but becomes a safety concern if the seat is used beyond its effective lifespan without replacement.
Fabric wear, seam failure, and foam exposure
High-use seats may develop tears or seam separation, exposing internal foam. While the foam itself is non-toxic, exposed foam can accumulate dust or debris and may reduce crash protection if structural integrity is compromised; inspect regularly.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 72% 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 child car seats 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.