The Klouds Tracy Stretch sandal is a supportive leather option with an inbuilt stretch panel on the medial side (the inside) to take pressure off a wide foot or bunion. They have a re-enforced heel counter for support, an arch supported innersole, and two velcro adjusting straps for a secure fit.
If you have your own orthotics simply remove the Klouds innersole to insert your own orthotics.