Kalas Aero Z1 Jersey — made in Czechia. The Aero jersey is made from extremely light, breathable fabrics, and its aerodynamic shape reduces air resistance…
Kalas Aero Z1 Jersey, sold under the Kalas brand, is manufactured in Czechia. That origin is recorded at the "Brand-Stated" evidence grade.
Kalas is headquartered in Czech Republic; a brand's home country is not evidence of where its goods are made, and the two are tracked separately.
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.