Ingasetshenziselwa ukuthwala nokuthwala, kanti umbala opinki ubukeka umuhle kakhulu.
Okufakwayo okuphezulu kwesigaba se-tactile egcwele impahla yesikhumba ye-PU.
Isikhwama esicashile sezicucu esine-zipper eqondile ngezansi kwangaphambi kulula ukuhlela nokusihlela.
Isikhwama sokuphatha esibushelelezi esibushelelezi kanye nomklamo omkhulu wamandla amakhulu kufanelekile ekuhambeni kwebhizinisi.
Indawo engafani yezicathulo, eyodwa futhi eqinile, ene-zipper encanyana
I-zipper enezindlela ezimbili, i-zipper ebushelelezi, ukuqhuma-ubufakazi abushelelezi, akukho jam chain.
I-PU ayivikeleki ngamanzi, ayifuni ukungcola futhi kulula ukuyihlanza. Ingathwalwa ngehlombe elilodwa, ephathekayo noma nge-diagonally.