Simply put, the Outdoor Research Tantrum II is our Top Pick for Running and Biking because of how easy it is to bring with you. While almost all of the jackets in this review stuff down into one of their pockets and clip into a hydration pack or a harness with a reinforced clip-in loop, the Tantrum takes portability a step further by stuffing into a tiny dedicated pocket on the lower back that has a thin elastic waistband and buckle attached to it, allowing you to carry it around the waist. While you can still clip it in if you choose, or just throw it into a pack, it is the only jacket in this review that you can conveniently carry with you on any adventure without needing a backpack or harness. We found this level of versatility to be absolutely huge when trying to select a jacket for any given day, and aren't ashamed to admit that this little feature alone accounted for the Tantrum joining us on more adventures than any other jacket in this review. Enough said!
The Outdoor Research Tantrum has been replaced by the Tantrum II. Scroll down to see the inside scoop on what's new!