There are many reasons to replace several of your favorite tee shirts with the Tech Lite Short Sleeve crewe when you pack for an adventure. The first is comfort. For this season, we've used a Nylon core wrapped in merino wool construction to enhance the durability and longevity of your tech lite tee. Because it's merino, you can wear it several times between washings, because the one thing you probably don't want to look for when you're sightseeing is a laundry. Features:  Weight:  150 Ultralight Fabric:  37% Merino wool, 13% Nylon corespun Fit:  Regular Features:  Crewe neck, set-in sleeves, tonal embroidered logo, corespun fabric for enhanced durability We say - my go to shirt for the Camino every year, two of these worn in rotation and you'll be fresh as a daisy by the time you reach Santiago!