The T-shirt is nothing to write home about as you pay a more to get a tech t (which I don't need), otherwise you get a gray t-shirt with the RBR logo on it. Mine was like a Men's XL for some reason.

25k is an odd distance as it is more than a 1/2 marathon, but not really close to a marathon. The course winds through Grand Rapids and out to the city limits along the river. There really are no spectators, except at major intersections, so it is actually quite peaceful. I can't remember much else, except that they had pretty good pace groups!