Iyi aluminium yekuchengetedza kesi ndeyemhando yepamusoro, yakakura kugona, uye yakasimba yekuchengetedza. Panguva imwecheteyo, inouya neEVA foam kuchengetedza chigadzirwa chako. Chitarisiko chealuminium kesi chinoratidzira dhizaini inodzivirira yekona, ichiita kuti aluminium yakaoma kesi igare yakasimba. Iyo kiyi buck lock inowedzera kuvanzika, ichibvumira zvinhu zvako kuti zvinyatsochengetedzwa.
Isu tiri fekitori ine makore gumi nemashanu echiitiko, inyanzvi mukugadzirwa kwezvinhu zvakagadziridzwa senge mabhegi ekuzora, makesi ekugadzira, makesi ealuminium, makesi endege, nezvimwe.