Fa'alauteleina le Thermoplastic Polyurethane Elastomer (ETPU) o se mea fa'apipi'i foam ma se fausaga sela tapuni ua saunia e ala i le fa'aoso fa'aoso fa'aletino e fa'aaoga ai le elastomer polyurethane thermoplastic. I totonu o le fanua o oloa ETPU, o loʻo i ai i le taimi nei la matou kamupani le silia ma le 10 pateni fou faʻatagaina ma pateni PCT, ma e mafai ona faʻapipiʻiina lapopoa eseese ma lanu eseese o faʻasologa o oloa eseese e tusa ai ma manaoga o tagata faʻatau.