Le mveliso yenziwe ngePET/PE. I-bottom ingakwazi ukuzimela, ihambelana nebhegi yokuma umboniso. Isitywina seZipper, sisebenziseka kwakhona. Izinto eziphakathi kwesikhwama yifilimu ye-polyester aluminized, enexabiso eliphantsi, ukubonakala okuhle kunye nokusebenza kakuhle komqobo.