I wear a C9 t-shirt as a base layer and the material feels and works just as well as some of my more expensive jerseys. The drawback on the C9 is that is not cut for cycling (i.e., a little shorter in front and longer in back). Not a big deal to me, but could be for others. For a short ride on a hot day where I did not need pockets, that C9 t-shirt would fit the bill perfectly. At $8 or whatever cheap it was, that's a good deal