Delivering soft next-to-skin comfort and breathability, the Patagonia Capilene Cool Trail Long-Sleeve Shirt will keep you cool and dry on warmer hikes in the fall and spring. Its performance knit feels like cotton but wicks and dries like a synthetic, giving you the best of both worlds when you're deep in the woods or high on lonely peaks. If you're familiar with Patagonia's Nine Trails shirts you'll find the feel familiar, but thanks to all-new Capilene Cool technology this shirt delivers a higher level of breathability than found in previous shirts and baselayers. Underarm gussets enhance your natural mobility for craggy sections of scrambling, and when it's all said and done you've got Polygiene odor-control technology ensuring that your hiking partner doesn't need to roll the windows down all the way home.