I was sold on the concept that natural rubber conforms towards the curves of the foot. That just feels like pure convenience. Thank you sharing this. This informative article is quite insightful. The next team remain synthetics (artificial) BUT they are produced from plant extracts. The cellulose within the plant https://gregoryfuiwo.tusblogos.com/38762054/the-best-side-of-natural-rubber-flip-flop