Answer
Our masks are made by default with a round elastic cord on which is inserted a black plastic slider for adjustment. We recommend this style of attachment for active theatrical play, for Larping or for any occasion where you will have to do a lot of movements while wearing the mask.
We also offer to make our masks with black ribbons that you can tie behind the head. We recommend this style of attachment for masked balls and for more decorative masks that will not be worn in a context requiring a lot of movement.