Forever 21 skirt (similar), t-shirt (similar) and jacket (similar options here and here)
Aldo boots (alternate)
Ray Ran sunglasses (c/o)
It's been done to death, but the military-jacket-over-anything look is so weekend-easy. I didn't mean to wear a store's worth of Forever 21, but it happens sometimes... there's no doubt they carry the widest selection of trendy pieces. Which brings me back "done to death" -- sometimes, you just have to be a slave to the trend, especially when it works so well.