Pennant

'Pennants are equippable items that allow users to show support for a team during tournaments, by increasing a team's Fan Level - visible in-game to other DotaTV users, as well as making any users with a pennant equipped eligible to receive tournament quality item drops; pennants were first introduced and utilized during The International 2, and will be used for designated future tournaments. There are currently 15 Pennants for sale on the Dota 2 Store, and 3 more pennants are expected to be added, Absolute Legends, Moscow Five.BenQ and Mortal Teamwork, but are waiting on paperwork to be completed.

Anybody wearing a pennant representing any of the two teams involved in matches are eligible to receive tournament items from events during that match - events are team-independant, e.g. a player wearing a Na`Vi pennant can receive drops from events triggered by iG.