Kalas Z3 Project 1.0 Socks — made in Czechia. These KALAS Z3 PROJECT 1.0 aero socks are designed for time trials and the fastest finishes in road races.…
Kalas Z3 Project 1.0 Socks, 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.