Hana ʻia ka ʻupena Trampoline me ka polypropylene a hoʻopiha ʻia me ke kalapona, ʻo kēia lole i ulana ʻia he ikaika tensile kiʻekiʻe, pale UV maikaʻi loa a kūpaʻa i ka ʻōpala a me ka wai.Hoʻopili pū ʻia nā fibers e hāʻawi i kahi ʻili maʻalahi a paʻa i hiki ke pale i ka lohi mau a me ke kaumaha.