ZIP (known as GASH in GTA: Vice City) is a fictitious clothing store from the Grand Theft Auto Series.
In Grand Theft Auto: San Andreas, there are Zip stores located in Los Santos and Las Venturas. The store is based on the Gap clothing store, with its fancy jeans and sporty khakis. If worn, these clothes increase the player's respect and sex appeal. However, these fashion items are expensive.
The Zip logo is also visible on some vans in Grand Theft Auto: Vice City, and there is a Gash store in the North Point Mall which pays protection money to Tommy Vercetti. Floating hundreds of feet above Vice City is a blimp that bares the Gash logo on it.