What sweater does the assassin Castel wear in the Bourne Identity?

In "The Bourne Identity," the character Jason Bourne, portrayed by Matt Damon, is seen wearing a distinctive dark green, cable-knit sweater. This piece of clothing contributes to his rugged and practical appearance as he navigates various challenges throughout the film. The sweater has become iconic and is often associated with the character's resourcefulness and survival instincts.