Fanatic iSUP Package Fly Air SLTSIZE DOES MATTER! 20. 25 marks a major update to our iSUP range. While our tried and tested shapes remain unchanged, we have completely overhauled the construction. It all started over 2 years ago with a big survey of our customers, asking them what the most important buying factors were. Although we already had a pretty good idea, the results were overwhelming. For over 90% only 2 things are important: weight and packing volume. With this focus, we