Made from Zegna's most exclusive, superfine wool fibres, the dark blue 12milmil12 wool baseball cap features an exceptionally smooth and sophisticated finish. Lined with wool for further comfort, a flag detail on the back completes the refined design.; 100% Wool Driven by a pioneering vision, Zegna was the first to incentivize the breeding of superfine Australian wools. At only 12 micron, the rareness of this fibre is due to the limited quantity produced worldwide every year. Do not wash. Do not bleach. Do not dry clean. Do not tumble dry. Do not iron. Colour: blue