it will be sold at railighs. here they are carrying a lot of official gear but not everything being told around town is legit. just about anything with kaepernick's name on it seems to be selling fast. >> he has just become a rock star. very good business wise. >> reporter: these shirts were just printed today. on them are official nfl player's stickers showing they are the real deal. >> our nfl sticker on it. because those stickers are numbered and whatever else and we have to account for them. >> reporter: but there are also plenty of knock offs. these vendors on market street took off when we started asking questions. >> why not is this not legitimate merchandise. >> reporter: and officially licensed products will carry either an nfl hologram or a tag or a sticker from the player's association. >> yeah, i always try to get the official licensed product. it's just my personal preference. i don't like to buy knock offs. >> reporter: the nfl confirms they have inspectors here in the bay area as well as in baltimo