I swear by my North Face Apex Bionic jacket (have three different colors). Perfect for rain and cool temps down to about 50 degrees. If colder then I bring an REI Spruce Jacket which is thin enough that can layer inside the North Face jacket. I usually compress the Spruce jacket in a vacuum bag taking up minimal space in the bag. For additional warmth in addition to the two garments above, I wear a long sleeved Under Armour Cold Gear shirt.

Have multiple sets ready for my MRs in the winter months .