Anta Sports Products has collaborated with Teknor Apex on the development of a midsole incorporating a new TPE (thermoplastic elastomer), which the partner companies have called Monprene. The research and development phase focused on the creation of a material that could offer not just cushioning properties but also optimal rebound performance over an extended period of time. The two companies reportedly carried out 40,000 running impact tests prior to incorporating Monprene into the midsole of a new line of Anta running shoes. The new midsole is said to offer 70 percent rebound resilience as compared to 50 percent from standard midsole materials, according to Anta.