Premium Yoga Cork Mat 5mm Thick Natural Tree Rubber Base and Bigger Mat for Extra Support vs Zuma Yoga Mat w/Nylon Strap for Men & Women Non Slip Excercise Mat for Yoga: which is safer?

Where these two actually differ

• We flag Microbial growth (mold, mildew), Latex protein allergenicity and Cork dust inhalation (minor) on the and not on the Retrospec.
• We flag Volatile Organic Compounds (VOCs) from PVC foam off-gassing, Plasticizer leaching (phthalates or similar) from foam base, Surface degradation and microplastic risk with age and Bacterial or mold growth if moisture is trapped on the Retrospec and not on the .
• The is natural tree rubber, cork surface where the Retrospec is PVC or TPE foam with nylon strap, 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.