This is a Dimensions KIT which has everything ie. pattern, floss, needle, fabric that comes with it. Dimensions uses their own floss. If you are concerned that you may run out of floss for this kit, you might want to consider giving them a call or e-mail and ask if you can purchase more of the floss that goes with the kit. Be sure you have the title of the kit to give them.
I am NOT an employee of Everything Cross Stitch; but one of the stitchers that visits the ECS "messageboard".