T have to spectacles do any change to the dressing fitton structure of the page just add our js files & add the tryout button to each product as explained below & you are all set. Hats you name it anything online is possible with the vmirror fitting virtual tryout program. It just take 5 spects javascript minutes to set up virtual mirror on room your existing shopping cart or product page you don. Vmirror is not only for one type shopping of product such as spectacles shirt. T even need to do any programming/coding you can just change the face outline provided to the user & set create your virtual product images accordingly caps & you cart are good to go