ʻO ka lole PU he polyurethane, ka mea nui i hana ʻia me ke kiʻekiʻe elastic fiber composite, me nā hiʻohiʻona like me ka ʻili maoli, ʻoi aku ka liʻiliʻi o ka pā lole pu, ka nui o ka hoʻohana ʻana.Ma muli o nā mea māmā holoʻokoʻa o ka lole pu, hiki ke lilo i mea maikaʻi loa i ka pale ʻana i ka pōʻino wai, a ʻoi aku ka maikaʻi o kāna hopena absorption wai.Ma hope o ka lawe ʻana i ka wai, ʻaʻohe pehu a me ka deformation.I ka manawa like, maʻalahi loa ka mālama ʻana.Ma keʻano heʻili, he māmā keʻala a he kūpono ke kumukūʻai.