When your workout heats up, the Smartwool Active Ultralite Short Sleeve keeps you cool and focused on your goals. This performance t-shirt combines the natural odor-fighting power of ZQ-certified Merino wool with moisture-wicking TENCEL™ Lyocell fibers, creating an ultralightweight fabric that regulates temperature whether you're crushing reps at the gym or conquering mountain trails. The athletic fit moves with your body without restriction, while thoughtfully placed offset seams prevent chafing during extended sessions. From dawn trail runs to evening gym sessions, the built-in reflective elements keep you visible, and the fabric's natural breathability means you can push harder without worrying about post-workout odors following you home.
