All in Motion Yoga Mat Rubber vs Premium Yoga Cork Mat 5mm Thick Natural Tree Rubber Base and Bigger Mat for Extra Support: 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 Iyengar Yoga.
• We flag Microbial growth (mold, mildew), Latex protein allergenicity and Cork dust inhalation (minor) on the Iyengar Yoga and not on the Iyengar Yoga.
• The Iyengar Yoga is Rubber (likely natural or synthetic rubber) where the Iyengar Yoga is natural tree rubber, cork surface, 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.