Replying to Carbon fiber, kevlar, or fiberglass?

im going to build my own pair of park skis and was wondering if anyone had suggestions for using carbon fiber, kevlar, or fiberglass in them to reinforce the ski as well as add a little pop. however i do not want the skis to be super stiff. i have found a carbon fiber/kevlar hybrid i might use but am not completely positive yet. other than this issue i have everything else planned out and want to start them soon! please let me know the benefits of each of these materials if you know any!