Fossil · Water-Resistant Smart Rings & Bands
Fossil Men's 22mm Silicone Watch Strap
Lower concern. Silicone elastomer is not a material linked to PFAS.
The material as recorded is silicone elastomer. No water-repellent finish or other coating is on record for this product. Fossil has no PFAS statement on record.
The better-graded swap
IMIKI
IMIKI Smart Ring
85/100 safety
Same rubric that flunked this product. The swap earned Excellent.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
silicone elastomer
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
What’s concerning
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
Polymer degradation and leaching during wear
Silicone can shed oligomers (short-chain fragments) with prolonged skin contact, especially under heat and perspiration. Risk is low and not documented as a health issue in wearable applications, but replacement after 3-5 years of heavy use is sensible.
Contact dermatitis from processing residues
Some individuals report mild irritation from uncured silicone monomers or processing oils if a strap is new. Washing before first wear may reduce this risk; reactions are rare and typically mild.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Heavy metals
Silicone straps use inorganic pigments or non-azo colorants in manufacturing. No reported recalls or test failures for Fossil silicone straps on this front.
Source, FDA ↗Formaldehyde / VOCs
Silicone elastomers do not require formaldehyde-based resins in their production. This hazard is not relevant to this material class.
Source, ATSDR ↗Antimony in polyester
Silicone is not polyester and does not contain antimony catalysts. This hazard does not apply.
The full breakdown
What it's made of and why it matters
This strap is silicone elastomer, a synthetic rubber polymer. Unlike fabric or leather straps, silicone does not use dyes, finishes, or adhesive resins that typically harbor formaldehyde or azo dyes. Silicone is chemically stable at skin temperature and does not leach significant substances under normal wear. The primary concern with silicone products is processing residues and colorants used during manufacturing.
The brand's record and disclosure
Fossil Group has no published chemical disclosure policy specific to watch straps and does not list third-party certifications (Oeko-Tex, GOTS) for this accessory line. No product recalls for chemical contamination of Fossil watch straps are recorded in public databases. The company's silence on PFAS use is typical for the watch accessories sector, which is not heavily scrutinized.
How it compares in its category
Silicone watch straps present lower chemical risk than fabric, leather, or rubber alternatives. Fabric straps may contain formaldehyde resins or azo dyes; leather introduces heavy metals and tanning chemicals. Silicone straps avoid these inputs entirely. Trade-off is durability, silicone may degrade or become sticky after years of UV and sweat exposure, requiring replacement sooner than leather.
If you buy it
Clean regularly with mild soap and warm water to prevent sweat and salt buildup, which can accelerate surface degradation. Avoid prolonged direct sunlight storage, as UV exposure degrades silicone elastomers over time. Replace the strap if it becomes sticky, discolored, or flakes; this signals polymer breakdown. Do not expose to solvents (alcohol, acetone) or extreme heat above 50°C.
What we don’t know
- Basis
- Model estimate, 78% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Fossil has made none
Formulations change between production runs, so check the current label. How we grade.
More water-resistant smart rings & bands 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.