Are the insoles of your current Blundstones worn out? Then you can purchase new insoles, so that they run like new again and you can enjoy your boots for a long time. You can also place an extra insole in your shoe if you have a narrow foot/low instep. The extra insole allows you to sit higher in the shoe and the shoes will probably fit perfectly! Different soles are available. View the soles and find your favorite sole.