These are a nice addition to my existing Moab boots. The factory insole is a good bit thinner than these, so the boots fit more snugly now. I have narrow feet, so it works out well for me; but if you're already filling the shoe volume completely you may want to stick with a factory replacement. I use a standing desk at work, and I've noticed that the Moab boots seem to be less tiring with the new footbed. They were priced well, and shipping was free and timely. Highly Recommended.