Health conditions – when does kybun help? kybun Support Team November 05, 2015 02:53 Follow Please visit http://usa.kyboot.shoes and either use the Search Page or the "Medical" main menu. Related articles What's the different from MBT and JOYA? How long do kyBoot last? Is there a warranty or guarantee? kyBoot v MBT Notes on Initial Reaction Comments 0 comments Please sign in to leave a comment.