First thing’s first: what’s the purpose of a jacket? Well, in my case, to keep me warm. I’m a total “wah” when it comes to being cold (picture a shivering newborn being removed from the womb), and the Williamsburg kicks the elements straight in the nards (if the elements had nards, of course). I’ve worn the Williamsburg in 30-degree temps and with the liner inserted, I laugh in Mother Nature’s face. Basically, it definitely does what it’s supposed to do. Plus, it’s also waterproof (on top of my disdain for cold, it gets worse if you add being wet to that equation). Luckily it finally rained here in Southern California. A lot. And I was able to sport it on quite a few wet treks home. And every time, after unbuttoning/unzipping it when I returned to mi casa, my shirt was completely dry. Yay!