Yoga Design Lab · Yoga & Exercise Mats
Yoga Design Lab Combo Yoga Mat
Lower PFAS concern; natural rubber mat with no known treatment.
Yoga Design Lab Combo Mat uses natural rubber and PER polyester fabric without disclosed water-repellent finishes. No PFAS claims made or third-party verification available.
We flunk more products than we pass. This one earned its grade. How we grade
Material
Natural rubber, PER fabric
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
You may also be interested in
Top-graded picks in the categories readers replace first, every one scored on the same rubric.
Aqua Pure
3M Aqua-Pure AP802B Whole House Filter Housing
- polypropylene filter housing, carbon/sediment cartridge
- We found no PFAS statement from the brand
- Bacterial growth in spent cartridges
3 hazards checked on this product. See all of them.
Aquasure
Premier Series 75 GPD Under Sink Reverse Osmosis Water Filtration System
- RO membrane, carbon filters, stainless steel housing
- We found no PFAS statement from the brand
- Bacterial and microbial growth in housing and filters
4 hazards checked on this product. See all of them.
Avocado
Vegan Mattress
- organic cotton, natural latex, coconut coir, recycled steel coils
- The brand calls it PFAS-free, which we have not verified
- Heavy metals
2 hazards checked on this product. See all of them.
What Yoga Design Lab Combo Yoga Mat is made of, ingredients and materials
The Yoga Design Lab Combo mat uses natural rubber as its base layer, derived from rubber tree latex, combined with a PER (polyether polyol polyurethane) fabric top. Natural rubber is inherently free of synthetic chemicals like Teflon-type coating or volatile organic compounds found in PVC or synthetic polymer mats. PER fabric is a closed-cell polyurethane textile that resists moisture and mold; it does not off-gas formaldehyde as some open-cell foams do. This material pairing is designed to balance grip, durability, and washability without relying on chemical surface treatments.
What’s concerning
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.
Natural rubber protein allergens
Natural rubber can contain residual proteins that trigger latex allergies in sensitive individuals, particularly those with known latex sensitivity or history of reactions to balloons or gloves. No allergen labeling or hypoallergenic certification is on record for this product.
Coating or surface degradation over time
Natural rubber degrades through oxidation, UV exposure, and ozone when stored or used long-term, leading to surface cracking, discoloration, and eventual peeling of the PER fabric layer. This is inherent to natural materials and not a contaminant risk, but signals end-of-life and loss of structural integrity for safe use.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
VOC off-gassing from manufacturing
Natural rubber and PER fabric do not inherently require solvent-based adhesives or volatile finishes, so significant off-gassing is not typical for this material class. However, the specific manufacturing process and any assembly adhesives used by Yoga Design Lab are not publicly disclosed.
Formaldehyde / VOCs
PER polyurethane fabric does not require formaldehyde-based resins for its production, and natural rubber does not off-gas formaldehyde by chemistry. No formaldehyde-containing finishing treatments are documented for this product line.
Source, ATSDR ↗Heavy metals
Natural rubber and standard PER fabric production does not typically introduce lead or cadmium. No heavy metal contamination has been reported for Yoga Design Lab products, and natural rubber is not subject to glazing or ceramic coating as rigid cookware would be.
Source, FDA ↗The full breakdown
The brand's record and disclosure
Yoga Design Lab does not publicly disclose detailed ingredient lists, manufacturing certifications, or third-party testing results on their website or product documentation. The brand maintains a silent stance on PFAS use, meaning no official commitment to PFAS-free production is on record. No recalls, legal actions, or established safety violations have been reported for this product line. The company markets itself as eco-conscious, but transparency on chemical content and supply chain oversight remains limited in public sources.
How it compares in its category
Natural rubber mats occupy a middle ground in yoga mat safety, they avoid PVC and synthetic foams that typically off-gas VOCs and flame retardants, but they also lack third-party certifications like OEKO-TEX or Global Organic Textile Standard that some premium brands provide. PER fabric tops are less common than traditional fabric or rubber-only designs; they offer moisture resistance but have less established long-term durability data in consumer use compared to closed-cell rubber or TPE mats. This product sits in the moderate-transparency, moderate-cost tier rather than budget synthetic or premium-certified alternatives.
If you buy it
Store the mat rolled or flat in a cool, dry place away from direct sunlight to slow natural rubber oxidation and surface cracking over time. Clean with mild soap and water; avoid harsh solvents or bleach that can degrade the rubber and fabric bond. Do not expose to high heat, prolonged moisture pooling, or extreme temperature swings, as natural rubber becomes brittle when cold and loses integrity when excessively wet for extended periods. Replace the mat if the top fabric begins to peel, the rubber develops cracks wider than hairline, or odor becomes persistent despite cleaning, as these indicate accelerated degradation and reduced function.
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
- Yoga Design Lab has made none
Formulations change between production runs, so check the current label. How we grade.
Better-graded alternatives in Yoga & Exercise Mats
Manduka
Almost Perfect PRO Yoga Mat
- closed-cell PVC-free foam, rubber top
- A third party reports verifying it as PFAS-free
- Formaldehyde / VOCs
3 hazards checked on this product. See all of them.
Manduka
Almost Perfect PROlite Yoga Mat
- Natural rubber and PVC, no Teflon-family coating
- A third party reports verifying it as PFAS-free
- Volatile organic compounds (VOCs) from natural rubber
More yoga & exercise mats 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.