Its quick drying quality and technical fit make this t-shirt great for everything from sport climbing to mountain biking. Made from Merino and recycled polyester, this T is at home as an outer layer for summer fun or even a base layer for ski touring and winter hiking. Made from traceable merino wool...This wool can be traced back to the farm it comes from, and by that secure that the sheep are being treated well, so you can smile while you wear it.