When I packed for my trips, it always seemed like the last item I remembered to include was a travel umbrella. I once got caught in Mexico City in a sudden downpour far from my hotel, leaving me too soaking wet to continue sightseeing. I had to turn back, and let’s just say the soggy return journey to my hotel wasn’t a fun one.
I know from experience how important it is to have a reliable travel umbrella when taking a trip. They're light and won't weigh you down, but they're durable and will actually keep you dry if you get caught in the rain.