The staff of Jurassic Park has uniforms and equipment.
In Jurassic Park Ellie Sattler, Robert Muldoon, and Dennis Nedry wear yellow raincoats with the yellow/black Jurassic Park Logo on it. This raincoat design might be inspired by the yellow raincoat that Ed Regis wears in the chapter Prologue: The Bite of the Raptor of the Jurassic Park novel.
In the novels, it is implied that the uniform was similar to that of policemen. In the movies, however, the uniform is a blue jumpsuit with an orange helmet.
The vets' uniform is different shades of green (most likely for camouflage) with a green cap.