Nomad · Water-Resistant Smart Rings & Bands
Nomad - Modern Leather Watch Strap for Apple Watch 44mm/45mm/49mm - Brown with black lugs
Lower concern. Natural leather band poses minimal PFAS risk.
This band combines leather and metal without disclosed water-repellent treatments. Natural leather carries lower PFAS risk than synthetics, though brand transparency is absent.
The better-graded swap
Oura
Oura Smart Ring 4
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
Leather with metal lugs
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.
Tanning agents and dyes in leather
Leather production involves chemical tanning (chromium-based or vegetable) and synthetic dyes. Residual compounds can leach into skin during extended wear, particularly in warm or humid conditions. Nomad does not disclose tanning method or dyestuff standards.
Formaldehyde / VOCs
Some leather finishes use formaldehyde-based resins for water resistance or gloss. Nomad does not specify finishing chemistry, so presence cannot be ruled out, though exposure via skin contact is typically minimal.
Source, ATSDR ↗Allergenic leather dyes and chromium sensitization
Individuals with nickel or chromium sensitivity may experience dermatitis from leather straps, particularly if chromium tanning was used. This is a material sensitivity rather than a universal hazard and varies by individual.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Metal lug corrosion and skin contact
If lugs are stainless steel, corrosion risk is negligible. If aluminum or uncoated base metal, corrosion could theoretically release metal ions, but no incidents are documented for watch strap hardware in normal use.
Microcracking and particle shedding
Properly maintained leather does not shed microparticles. Degraded or low-quality leather may crack and shed, but this is a durability issue rather than an established chemical hazard for this brand's product tier.
The full breakdown
What it's made of and why it matters
This strap is constructed from leather (material unspecified as full-grain, top-grain, or corrected) with metal lugs that attach to the watch. Leather itself is a processed animal hide and does not inherently contain the synthetic additives common in plastics or textiles. The primary chemical concern in leather products is residual tanning agents and dyes used during production, which can leach if the leather is exposed to prolonged moisture or sweat. Metal lugs are typically stainless steel or aluminum and pose minimal leaching risk under normal use.
The brand's record and disclosure
Nomad is known for minimalist watch accessories and does not publicly disclose detailed material sourcing, tanning methods, or third-party testing results. The brand has not faced major recalls or documented chemical contamination incidents related to watch straps. No independent certifications (e.g., Leather Working Group environmental standards) are advertised, and the company's stance on chemical transparency remains silent. This represents a typical transparency profile for a mid-market accessories brand rather than a red flag.
How it compares in its category
Leather straps are generally lower-risk than silicone or synthetic rubber alternatives, which may contain phthalates or flame retardants. Compared to fabric straps (which can harbor formaldehyde resins or azo dyes), leather avoids those specific hazards. However, leather quality varies widely; budget alternatives sometimes use corrected or bonded leather with higher chemical loads, while premium full-grain leather typically involves fewer additives. Nomad's positioning as a design-focused brand suggests mid-to-upper material quality, though this is not independently verified.
If you buy it
Clean the strap periodically with a damp cloth to remove sweat and dirt buildup, which can degrade the leather over time and potentially concentrate residual chemicals. Avoid prolonged water exposure or storage in high humidity, as these conditions can accelerate leather deterioration and release tanning compounds. Replace the strap if cracks, peeling, or discoloration develop, as these indicate loss of protective finish. Allow the strap to air dry fully after wet exposure rather than applying heat.
What we don’t know
- Basis
- Model estimate, 72% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Nomad 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.