Shoes that fit over a splint

Skate shoes (like dc, or etnies) Are brilliant for going over splints as they go nice and wide. I've found that I don't always need to go a size larger with them, which was handy when I was only wearing one splint (I now wear two) I used an insole in the shoe without the splint to make sure the shoe fitted better, and it gave my foot a bit more support too - which is never a bad thing!
I wear piedro boots with my splints too... They come in various width fittings so you can get a really precise fit. I now buy mine privately as I don't get them supplied by orthotics because I now wear two splints, but they are the best smart shoes I've found to fit splints in for when I can't wear trainers (in the office, going out or when I'm wearing a suit etc.) They are also very hard wearing! You might be able to get them supplied by orthotics.