Have a look at this website. There are lots of photos of the underside of hats. Just click on the hat, and it will bring up the photos. http://www.hatwoman.hk/shop/category.php?id_category=5 Hope this is what you were looking for. x
I have just been looking at this hat woman site - incredible! and fantastic that there is so much detail on show!
Do you just use a heavy gauge wire to create a wire support and attach it to the headband that fits on the head? How do you connect the two headbands securely?