I have a bunch of the merino wool t-shirts. Expensive, but so worth it. They use excellent quality merino wool and the collars are done just right - they do not sag like other shirts. The material is thicker than other brands and has a nice sheen to it. Most other companies selling t-shirts have very form-fitting products that don't work for the office or for casual use. The outlier tshirts are perfect for my use and I wear them every day. Only complaint is the high price.