Smartwool Active Short-Sleeve Top

What Our Gearhead® Experts Are Saying: "The Active Short-Sleeve Top is my go-to for intense workouts and long runs. The Merino blend manages moisture and odor like a champ, while the recycled polyester gives it that extra durability. I love the relaxed fit that moves with me, and the offset seams really help prevent chafing when I’m logging serious miles. Plus, the reflective elements are a nice touch when I’m out after dark." We don’t let heat slow us down, and the Smartwool Active Short-Sleeve Top keeps us pushing forward no matter the conditions. Blending the natural moisture management, odor resistance, and temperature regulation of Merino wool with the durability of recycled polyester, this top performs as hard as we do. The lightweight fabric wicks away sweat to keep us cool during intense efforts, while the relaxed fit and offset seams ensure a smooth, chafe-free experience as we move.Reflective elements give us extra visibility when our runs take us past sunset, and the breathable feel makes it the perfect layer for everything from trail runs to gym sessions. Whether we’re crushing PRs or exploring new routes, the Active Short-Sleeve Top helps us stay comfortable, focused, and ready for what’s next.