Garmin · Waterproof Sports Bags
Sportsman Waterproof Magnetic Dry Bag
Waterproof bag with unknown water-repellent coating chemistry, no PFAS disclosure from Garmin.
Dry bags typically use water-repellent coating coatings that often contain PFAS, but Garmin makes no public statement about this product's treatment. Brand silence and lack of third-party verification increase uncertainty.
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Material
Nylon or TPU waterproof coating, unspecified water-repellent coating treatment
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Waterproof / stain-resistant treatment
water-repellent coating treatments have historically used PFAS.
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
This bag uses nylon or TPU (thermoplastic polyurethane) as the core waterproof material, with an unspecified water-repellent coating (water-repellent coating) treatment applied to the surface. water-repellent coating coatings are the primary vector for PFAS in waterproof gear; Garmin's silence on the chemistry means you cannot confirm whether this uses legacy fluorine-based water-repellent coating or newer PFAS-free alternatives. The nylon and TPU themselves are chemically stable under normal use, but the coating's composition and longevity determine the actual safety profile.
The brand's record and disclosure
Garmin is a GPS and marine electronics company with no established track record of transparency on textile chemical safety or PFAS policy. The brand has not publicly disclosed water-repellent coating chemistry for this product or similar waterproof accessories, nor has it published a PFAS phase-out commitment. No recalls or reported contamination events specific to Garmin waterproof bags are on record, but the absence of disclosure suggests this is not a priority area for the brand.
How it compares in its category
Waterproof dry bags occupy a middle ground in PFAS risk: they are not apparel worn against skin (lower absorption risk) but they are treated with surface coatings that often contain fluorinated water-repellent coating. Competing brands like Patagonia and REI Co-op have publicly committed to PFAS-free or low-PFAS alternatives; Garmin's silence puts this product behind the transparency standard set by outdoor retailers. For a magnetic dry bag, the coating durability matters more than brand commitment, peeling or degraded coatings reduce waterproofing and suggest the water-repellent coating is failing.
If you buy it
Inspect the bag's coating regularly for peeling, cracking, or discoloration; these are signs the water-repellent coating is breaking down. Avoid exposing it to prolonged direct heat or UV (store out of sunlight when not in use), as both degrade TPU and polyurethane coatings faster. Wash gently by hand with plain water; harsh detergents and machine washing can strip the water-repellent coating layer. If the coating visibly deteriorates within 1-2 years of normal use, consider replacing it rather than attempting repairs, as recoating is unreliable.
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.”
Fluorinated water-repellent coating (PFAS family)
water-repellent coating chemistry is unspecified. Legacy fluorine-based treatments (C6/C8 PFOA, PFOS) persist in some waterproof nylon products; newer PFAS-free alternatives exist but Garmin has not disclosed which is used. Skin contact risk is low for a dry bag (not direct wear), but leaching into water or soil is possible if coating degrades or is laundered.
TPU/polyurethane coating degradation and leachates
TPU and polyurethane coatings can release minor amounts of uncrosslinked oligomers or plasticizers when aged or exposed to heat/UV. This product's coating durability and chemistry are not disclosed. Risk is low for external dry bags but increases if the bag is used to store potable water or food over long periods.
Nylon fiber shedding (microplastic)
Nylon textiles shed microfibers with washing, but for a dry bag (not intended as a wearable or food contact item) this is a minimal concern. Normal use (dry storage, occasional hand washing) will not significantly contribute to microplastic load.
Formaldehyde in finishing resins
Modern nylon waterproof bags rarely use formaldehyde-releasing resin finishes; they rely on water-repellent coating coatings instead. No evidence of formaldehyde use in Garmin waterproof bags, but full composition is not publicly disclosed.
Azo dyes or heavy metal pigments
No specific hazard flagged for this product. Garmin does not disclose dye or pigment chemistry, but waterproof bags are rarely treated with problematic azo dyes (which are more common in apparel dyed textiles). Risk is low for a single-color or simple-dyed item.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 35% 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.
Safer alternatives in Waterproof Sports Bags
Garmin
Carrying Case
Neoprene or polyester case, material unspecified
Unknown material raises concern; no PFAS disclosure from Garmin.
⚠Risky category by default
Patagonia
Guidewater Sling
recycled polyester with water-repellent coating finish
Lower concern; brand committed to PFAS-free water-repellent coating, but verify current batch
⚠Waterproof or stain-proof treatment
More waterproof sports bags 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.