Asolo · Running & Athletic Shoes
Men Shoes Asolo Eldo
Skip until Asolo discloses waterproofing ingredients used.
Asolo Eldo hiking shoes likely use water-repellent coating-treated leather for water resistance, but the brand does not disclose which water-repellent chemicals are applied. Composition of waterproofing treatment remains unknown.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
leather/suede upper, likely water-repellent coating-treated
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
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What Men Shoes Asolo Eldo is made of, ingredients and materials
Asolo Eldo shoes use leather and suede uppers, which are tanned animal hides treated with chemicals. The designation of water-repellent coating (water-repellent coating) treatment suggests a surface finish applied to repel moisture; Asolo has not publicly disclosed whether this uses PFAS-based compounds or fluorine-free alternatives. Leather and suede tanning historically involve chromium (III), heavy metal dyes, and formaldehyde-based preservatives, depending on the tannery and Asolo's specifications. The actual chemical load depends entirely on production transparency, which is limited here.
What’s concerning
Waterproof / stain-resistant treatment
Water-repellent coating treatments have historically used PFAS.
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Formaldehyde / VOCs
Leather tanning can involve formaldehyde-based biocides and cross-linking agents. Asolo does not disclose tannery methods or post-tanning treatment, so presence is not confirmed but is within normal industry practice for non-certified tanneries.
Source, ATSDR ↗Heavy metals
Leather dyes often contain azo compounds and trace heavy metals (cadmium, lead, chromium VI). Without Leather Working Group certification or tannery transparency from Asolo, levels cannot be assessed; risk is typical for non-certified leather shoes.
Source, FDA ↗Chromium (III) residues from tanning
Chrome tanning is the most common method for leather production. Chromium (III) is considered low-toxicity in skin contact, but elevated residues or incomplete rinse-off are a non-zero concern if tannery controls are unknown.
Coating degradation and exposure over time
Water-repellent coating finishes degrade with wear and laundering (not applicable here, but dirt/salt exposure applies). As the coating breaks down, any underlying treatments or the leather itself may leach or off-gas differently, depending on what was applied; this is manageable with re-treatment and inspection.
PFAS
Water-repellent coating on outdoor footwear is frequently PFAS-based (C6, C8, or proprietary chains). Asolo's silence on this ingredient and no public commitment to fluorine-free alternatives means PFAS presence cannot be ruled out and should be assumed likely pending disclosure.
Source, ATSDR ↗The full breakdown
The brand's record and disclosure
Asolo is an Italian outdoor footwear brand with a long heritage but minimal public disclosure on chemical inputs, tanning methods, or water-repellent coating treatment agents. The company does not publish material safety data sheets, tannery certifications (e.g., Leather Working Group), or commitments to PFAS avoidance. There are no widely documented chemical controversies or recalls specific to Asolo shoes, but the absence of transparency is itself a significant gap. Asolo's silence on water-repellent coating ingredients is a red flag for a product category where PFAS alternatives exist.
How it compares in its category
Premium leather hiking and outdoor shoes typically range from non-disclosed chemical profiles (most brands) to transparent tannery partnerships (outdoor leaders like Salewa, Scarpa, Vibram). Asolo sits in the middle-to-opaque tier, established quality reputation without modern supply-chain disclosure. Many competitors either avoid water-repellent coating on leather uppers or openly use fluorine-free water repellents. Asolo's lack of commitment to either transparency or PFAS-free formulations is a relative weakness in a category where alternatives exist.
If you buy it
Use leather conditioners and wax-based water repellents (beeswax or plant-oil formulations) after purchase to reduce reliance on the factory water-repellent coating finish and extend shoe life. Avoid heat sources above 140F (60C) when drying; air-dry only. Inspect soles and uppers monthly for mold, salt damage, or coating breakdown, especially in wet climates. Replace the shoes if the upper develops cracks that expose the leather interior, as this signals end of water resistance and structural integrity.
What we don’t know
- Basis
- Model estimate, 35% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Asolo has made none
Formulations change between production runs, so check the current label. How we grade.
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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.