I have been buying tech t-shirts for 17 years. Most of those shirts were made of polyester and nylon. After a while (sometimes a short while), they get funky. So funky that they're unbearable to wear. Merino is the solution. This shirt does not smell even after hours of vigorous activity, drenched in sweat. The material dries relatively quickly too. I wear this shirt hiking, biking, around town and on my daily commute. I used to dread pulling on a functified polyester tech shirt for my ride home after work. With the tech lite, that is never the case. I have even gone all day without changing, and nobody is the wiser. I would have offended several people including myself, if I tried to do this in my tech shirts of old. These are great alone in the heat or as a base layer in cold weather as they wick, breathe and insulate well. Every t-shirt I own is slowly being replaced by these shirts. They are comfortable, especially after a few washes. It's crucial to hang dry them. If you don't, you'll ruin the material. I know from first hand experience. Get one, and you're bound to get more. They're awesome.