Sea to Summit Review, Is Sea to Summit Non-Toxic?
PFAS Authority is a scoring system, not a laboratory. We do not test products ourselves. Grades are model-based, built from published ingredients, materials, certifications, brand disclosures and third-party lab results where they exist. See the rubric.
Across 2 graded products, Sea to Summit averages Poor (40/100). On disclosure, the brand says nothing publicly about PFAS. None of its products grade Good or better yet. Grades are model-based estimates, not lab results.
Graded and flagged Poor and Bad, we’d swap these
Sea to Summit
TPU Guide Waterproof Case
TPU (thermoplastic polyurethane) with waterproof treatment
PFAS
Sea to Summit has not disclosed whether the waterproof treatment on this TPU case…
TPU thermal degradation and fume release
If heated above its glass-transition temperature (typically 60-80C depending on…
Coating degradation and secondary exposure
Waterproof coatings on flexible materials can crack, peel, or flake with age and use.…
Fragmentation and microplastic shedding
Like all synthetic polymers, TPU can degrade over time with UV exposure and mechanical…
TPU waterproof case with undisclosed treatment.
⚠Waterproof or stain-proof treatment
Sea to Summit
Guide Waterproof Case
Waterproof case with unspecified water-repellent coating
water-repellent coating volatilization and off-gassing
Waterproof treatments can release volatile organic compounds (VOCs) when heated or…
Coating degradation and microparticle release
water-repellent coating coatings degrade over time with UV exposure and flexing; peeling…
Plastic laminate leaching
The interior waterproof layer is typically a plastic film (polyurethane or PVC-like)…
Skin sensitization from coating additives
Some water-repellent coating coatings contain catalyst residues, colorants, or adhesion…
Wait. Waterproof coating type is undisclosed, PFAS risk unclear.
⚠Waterproof or stain-proof treatment
Every grade uses the same public rubric. How grades work →