Indwangu ye-PU i-polyurethane, ikakhulukazi eyenziwe ngenhlanganisela ye-elastic fiber ephezulu, enezici ezifanayo nezesikhumba sangempela, igridi yendwangu ye-pu ishibhile, izinga eliphezulu lokusebenzisa.Ngenxa yokukhanya okuphelele kwendwangu ye-pu, ingaba kuhle kakhulu ukuvimbela umonakalo ongangeni manzi, futhi umphumela wayo wokumunca amanzi muhle kakhulu.Ngemva kokumunca amanzi, ngeke kube khona ukuvuvukala noma ukuguqulwa.Ngesikhathi esifanayo, kulula ngokukhethekile ukunakekela.Njengesikhumba, iphunga lilula futhi intengo iyathengeka.