Superfeet are my favorite non-custom insoles. They come in a wide variety of styles for many different shoes. What most people don’t realize is that even though Superfeet are pre-sized A,B,C,D etc. your foot may not fall exactly within the corresponding numbered size. This video shows you how to properly size Superfeet so that you get optimum support. My other posts about Superfeet follow the video.
https://drshoe.wordpress.com/2007/12/18/hammertoes-full-length-insoles/
https://drshoe.wordpress.com/2008/07/29/spin-class-arch-pain/
https://drshoe.wordpress.com/2008/01/22/dress-shoe-orthotics/
Dr. Jenny Sanders Shoe Blog 
I have recently received my new custom made orthotics and they are making a nice difference in my foot comfort. My challenge is this…since my foot issues are from the ball of my foot thru the tip of my foot, the orthotic is thickest in that area. When I put them in my shoes they fit perfectly. But, when I try to put my foot into my shoes, there’s not enough room for my foot to fit in comfortably, in the front half of my shoe. I’m wearing Nike Free 2.0 running shoes, so the mesh gives a little, but it so tight around my forefoot, it’s still uncomfortable. Are there some tennis shoes / running shoes that are “deeper,” that will give me room for my thick orthotic AND my foot? Thanks for any advice you might be able to offer.
Nike Free is a minimalist running shoe whose design is contrary to that of a custom orthotic. Custom orthotics, especially the sport type, provide support by preventing excessive pronation which unfortunately can be too bulky to use with a minimalist running shoe. Since you need the extra forefoot cushion the orthotic provides, you will want to switch to a running shoe that has a removable liner to swap out for your custom orthotic. Any specialty running shoe store should also be able to help you with this.
-Dr. Sanders