Tampax Compak Tampax Compak has a smooth plastic applicator that is half the length of a usual Tampax Cardboard applicator, making it twice as discreet to carry. Tampax Compak absorbs your period at the top of the tampon and keeps it inside. The tampon gently expands to fit your bodys shape and the built-in Protective Skirt helps to prevent leakage. So you can feel clean and free to do whatever you like.