I have difficulty buying shoes. I also have a bad back and need shoes with good support. Several people have recommended this brand. I am taking trip to Italy and plan to do LOT of walking. I thought I would give this product a try. I ordered a half size larger and they fit PERFECT! I have returned to exercise program [treadmill and strengthening machines]. These shoes are VERY comfortable and offer a LOT of support. I have not experienced the usual burning in my calves while doing treadmill. I HIGHLY recommend this product and will definitely buy more from this manufacturer.