SEMI
SEMI is a clothing manufacturer first introduced in Grand Theft Auto III, then later seen in on fleets on Mules in Grand Theft Auto: San Andreas, then seen again in Grand Theft Auto IV. SEMI clothing can be seen in SubUrbans in San Andreas, selling t-shirts and shoes.
Although no stores can be found in San Andreas, some shops in Liberty City can be seen selling SEMI products (look for the logo). A SEMI store can be found in Belleville Park near the Liberty City Memorial Stadium.