sgee wrote a review of Patagonia Torrentshell Trench Coat - Women's on July 27, 2012
I bought this in part because I work music festivals in a mountain climate and have to deal with on and off rain in very warm weather, run around, sit on wet lawn or concert seats, and still manage to look put together. The length and lightweight nature of this trench is perfect for my purpose. As many others have noted, it is so light that it packs very small -- I can stick it in my purse, in fact, and pull it out again for the next downpour. The length allows you to sit on wet surfaces and also makes this jacket look urban/professional -- it's not a big sporty look. It comes to just above my knees.
I am 5'5 and 138 and bought the medium so I could wear a fleece or something similar underneath for warmth in the cooler seasons. It is roomy enough for that but still looks pretty form-fitting and almost tailored on. Now, in July, I can wear this over a tank or short sleeve tee in pouring rain in 90 degree weather and not get overheated.