Kalas PASSION Z4 bib shorts — made in Czechia. Our PASSION Z4 bib shorts have been redesigned to offer our best bib shorts to date. New lighter and more…
Kalas PASSION Z4 bib shorts, sold under the Kalas brand, is manufactured in Czechia. That origin is recorded at the "Brand-Stated" evidence grade.
Origin evidence last reviewed 2026-10-24.
Every origin claim on Hesperia Market is graded by the strength of its evidence and linked to its sources.