Outdoor Research^® Foray 3L rain jacket

The best lightweight modular no-nonsense waterproof jacket that I've yet to purchase. It's incredibly lightweight, alternately breathable and insulating as it needs to be, convenient to roll up the sleeves on, easily layerable, neither too slim nor too generously cut, and highly flexible -- in other words, an ultra-versatile option for both outdoor and urban excursions when regardless of rain levels or really humidity either. It's only flaws lie in its lack of a reversible zipper and interior pockets, but to me weren't dealbreakers for the excellence of its materials, construction, and fit. Very, very highly recommended.