The Cappello Alpino is the most distinctive feature of the Italian Army's Alpini troops' uniform. The Alpini are light Infantry troops, specializing in mountain combat. Initially, the Cappello was only issued to the Alpini, but soon the Cappello was adopted by the Alpini Corps' support units like artillery, signals, and engineers. Today the Cappello is issued to members of 15 Army regiments, 3 battalions and various high commands. Thanks to the black raven feather, which is carried on each Alpini soldier's Cappello, the Alpinis are known as Le Penne Nere ("The Black Feathers") in Italy. A nickname the Alpini quickly adopted for themselves.