Abakiriya ba Amerika bakunze kubaza kubyerekeye kongeramo zippers kuruhande gusseted gupakira kugirango byoroshye gukoreshwa. Ariko, ubundi buryo bwa zippers gakondo burashobora gutanga ibyiza bisa. Munyemerere menyekanishe Kawa Yacu ya Kawa ya Kawa hamwe na Tin Tape Ifunga nkuburyo bwiza. Twumva ko isoko ifite ibikenerwa bitandukanye, niyo mpamvu twateje imbere gapset gapakira muburyo butandukanye nibikoresho. Ibi byemeza ko buri mukiriya afite amahitamo meza. Kubantu bakunda uruhande ruto gusset paketi, amabati ahuza muburyo bworoshye. Kurundi ruhande, kubakiriya bakeneye ubunini bunini bwa gusset gupakira, turasaba cyane guhitamo tinplate hamwe no gufunga. Iyi mikorere itanga uburyo bworoshye bwo gukuraho, kubungabunga ibishyimbo bya kawa no kurinda igihe kirekire. Twishimiye kuba dushobora gutanga ibisubizo byoroshye byo gupakira byujuje ibyifuzo byihariye nibisabwa nabakiriya bacu bafite agaciro.