Cloth to clean the ophthalmic glasses and prevent the appearance of fogging with the use of the mask. It is reusable and allows an adequate vision. It comes in a bag with ZIP closure, which favours airtight preservation to prevent the product from drying out. Made of microfibre, it does not damage lens lenses. It can be moisturised with a little water in case it has dried out. Easy to carry everywhere. Helps maintain vision and provides safety to the user.