Just went for my first run in the Stoic Bliss. I live in the mountains of western Maine, and we have been having unusually warm weather for November. Was one of those perfect days: sunny, ~45 degrees, light wind. I generally run between 20 and 25 miles per week and I am so glad to have the Bliss as a new running companion. On those cool fall days, it is really all you need for your trunk and arms. Extended sleeves with thumbholes keep hands nice and toasty but may want light gloves for the fingers. I can see the Bliss shirt making a wonderful base layer for colder days as well. The chest pocket is perfect for holding a small mp3 player, a gel, a handkerchief, and/or a key...what-ever your needs may be. If you live in a warmer climate, such as the southeast, this may be the only shirt you'll need to get you through your winter runs. It wicks really well and is the perfect mix of warmth while also keeping you dry and refreshed. Try one for sure!!!