All in Motion Yoga Mat Rubber vs IUGA Eco-Friendly Non Slip TPE Yoga Mat: which is safer?

Where these two actually differ

• We flag Natural rubber latex allergen (if natural rubber composition) and Microplastic shedding from surface degradation on the Iyengar Yoga and not on the Tpe Yoga Mat.
• We flag Volatile organic compounds (VOCs) off-gassing, Microplastic shedding and Mold or bacterial growth if moisture-trapped on the Tpe Yoga Mat and not on the Iyengar Yoga.
• The Iyengar Yoga is Rubber (likely natural or synthetic rubber) where the Tpe Yoga Mat is TPE (thermoplastic elastomer), which is most of the difference in these two grades.
• These two are level, close enough that price and fit should decide it rather than our grade.