
Global sales of footwear sole material are set to be valued at over US$ 15 Bn in 2021, with stable long-term projection for the market, according to latest insights in a revised report by Persistence Market Research, an ESOMAR-certified research
source
https://www.openpr.com/news/2500415/sports-and-fashion-industry-to-account-for-bulk-of-footwear-sole