These insoles can increase your height by as much as 3.5 inches giving you a serious boost in height and confidence. Thanks to their inbuilt orthotic support they are extremely comfortable to wear and can even help to correct the way your feet function. By correcting the biomechanics of your feet, these insoles will help to prevent common foot injuries from developing such as Plantar Fasciitis and Metatarsalgia. Unlike other heel lifts these can be a little bulky to wear so it is advised to wear them inside wide boots that give your feet plenty of room. If your not happy with the insoles HeightBoosters™ provides a full 30-day money back guarantee on these insoles so you can return them and get a full refund if they are not for you.