Ease of putting it on, how it stays in place during your movements, even holds up and on when using it on or near the water were it could and most often does, gets wet.
The gel portion of the cushion is poorly sealed and most often ends up leaking after a few years of use, if you are active it would be smart to have a backup just in case it starts leaking because trying to seal it back up is near impossible.
carlo c. from pembroke, ma
T2 complete for over 40 years, very active and sometimes need extra cushion. Find this product very useful.