 Historically, the only standardized piece of the equipment has been the sweater (jersey), which has to be of identical design by the same company for all members of a team.Other elements merely have a number scheme, allowing individual players to select their own brand and model colored to match the uniform but not necessarily identical in appearance.Sticks and other equipment worn under the clothes have no requirements in terms of matching a team's colors; teams will sometimes provide players with team-brand undershirts or other under-clothing, but players are not required or limited to wearing them.