The Swobo Featherweight Baselayer goes with everything that you currently own. How sweet is that.... This piece can turn your somewhat taggered, older, jerseys into a whole new ride. And that last fact may be stretching it a bit, but you're picking up what we're putting down. Over the last decade, Swobo has worked very closely with the leading New Zealand developers of Merino farming and fabric innovation. To really dive into what they do, click HERE to get some really interesting Merino information. This fabric has been designed to be worn directly against your skin, and that's how your going to receive all the technical benefits. Merino has the fastest moisture transportation rate of any fabric, which is why they don't stink after even several long rides. The no stink factor is because the fiber doesn't allow bacteria to form. No bacteria means no stink. Simply dry a 100% Merino product out, and be amazed at how they don't retain odor.