Cov khoom siv TPU yog thermoplastic polyurethane, uas tuaj yeem muab faib ua polyester thiab polyether. TPU zaj duab xis muaj cov yam ntxwv zoo ntawm kev kub ntxhov, siab elasticity, siab hnav tsis kam thiab kev laus ua haujlwm, thiab muaj cov yam ntxwv zoo ntawm kev tiv thaiv ib puag ncig, tsis muaj tshuaj lom, pov thawj mildew thiab antibacterial, biocompatibility, thiab lwm yam.