I did not come across them until yesterday and was very surprised. Many synthetic Dri-Fit polo shirts I saw were quite well made – accurate stitch lines, fabric comfortable to touch (not Smedley, but still good) and good silhouette. Plus synthetic materials usually hold better their colour and shape than many natural fabrics after many washing rounds, but cost less. I wonder why not many people use them for a causal wear? In my opinion they look better than Sunspel Riviera.