I have 4,5 hours free at the Dulles airport from my flight from Germany to Mexico. As I need trousers/pants (kaki) for next trip, I planned to hop into a cab and drive to a shopping mall or outlet store (hilfigher, lacoste, ralph Lauren,...) for 30min shopping.
Is this doable, which mall/store would you recommend and what is the approx. Taxi cost?
Thank you foR any tips!