Aloha John! Mahalo for reaching out to OluKai! We are sorry to hear that you had issues with the ‘Ohana - Black Sandals, but we truly do appreciate your feedback about this. We will be notifying our product team about these issues. We are also glad they have already been replaced, and we hope you are happy with your new Ollukai Sandals. You can always reach out to us through our contact on www.olukai.com! We are always looking to improve, and that starts with feedback like yours. If you have any more questions or comments, please let us know. Mahalo!