practice items

[skipcarayislegend]

Same could be said for NBA warmups.

...and managers and coaches (although I do consider those jerseys to be game used).

Practice-worn and spring training gear are all in the same boat, personally. To me, game worn means worn-in-games-that-count, so ST and BP are one in the same.

[LastingsMilledge85]

It depends on how you want to look at the entire picture. If you want to get technical game used would be anything used during a game, which could go as far as the gum the players use or the sodas the fans drink . IMO, game used is any piece of equipment a player used during that game whether they saw action or not.

[flaco1801]

same reason you park on a driveway, and drive on a parkway