What are inflatables made of? ISLE Customer Support October 10, 2018 17:20 Updated Follow All of ISLE's inflatables are made of a military grade dual-layer PVC to create the best board on the market! You can also check out our SUP construction guide here. For more information Check out ISLE iSUP Guide video: iSUP Guide Video Related articles Can I change my shipping address? What is the warranty on hard boards? How long does it take to inflate? Can rocks damage an inflatable board? What does my inflatable package include? Comments 0 comments Please sign in to leave a comment.