Kalas Base Z1 women's merino base layer — made in Czechia. This lightweight long-sleeved base layer is made from fine, thin merino wool. Thanks to its unique…
Kalas Base Z1 women's merino base layer, 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.