Kouros Cologne Sport is an amazing fragrance. I find it to be closer to Kouros than others on the forum. I would say that it is a lightened, modern take on the Kouros scent. I have also owned a couple bottles of Kouros and Kouros Fraicheur over the years and find that KCS offers the lineage while fitting in with modern tastes for lightened fragrances. If you like Kouros or KF you will enjoy KCS.
Gotta agree with Titan. I enjoy both Kouros and Kouros Fraicheur and do indeed like Kouros Cologne Sport. Wish this one was more readily available. All three are solid scents and work best (IMO) in warm weather.