Kalas Base Z1 winter long-sleeved base layer — made in Czechia. This long-sleeved base layer is made from soft, warm merino wool. The fabric's unique…
Kalas Base Z1 winter long-sleeved 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.