Hana ʻia kēia ʻeke i ʻekolu-layer composite material (MOPP/ PET/PE), ʻo ka ʻaoʻao o waho he MOPP film, a maikaʻi ka hopena hau, ʻoi aku ka kiʻekiʻe. ʻO ka papa waena he keʻokeʻo keʻokeʻo i uhi ʻia i ka aluminized PET, hiki ke pale i ka mālamalama a pale i ka radiation ultraviolet. ʻO ka papa o loko ka PE, nona ka waiwai sila maikaʻi a me ka waiwai pale maikaʻi.
Hiki ke hoʻopaʻa ʻia ka ʻeke me ka zipper no ka hoʻohana hou ʻana.