Adidas make some great shoe . so I think these Adidas sandal would be great , too ! the concept be intriguing : hundred of little `` nub '' be suppose to `` massage '' you foot as you walk . these nub , however , be make of hard rubber , and it be like walk over gravel barefooted ! the nub be too hard and space too widely apart to support the bottom of you foot without uncomfortable pressure ! maybe if you be that kenyan marathon runner who run barefooted and have callus a inch thick on the bottom of he foot and wear these sandal , you would feel comfortable in they . but if you foot be `` tender '' and you be not use to go barefooted , these sandal be guarantee to make you feel like you be walk over sharp object ! the nub , of course , be not sharp enough to penetrate you skin , but they do not feel good to sensitive foot ! I think these sandal would make my foot feel better , but after a hour I take they off and go back to my regular sandal for wear around the house . these should be redesign to have `` fatter '' nub . these nub be more like blunt nail ! you would not think so just to look at they , but on you foot these sandal be a different matter ! if you want to massage you foot , do it yourself or find a friend willing to help you out , but skip these sandal !