Spouti™ eliminates STP woes by creating a seal around your urethra. Spouti™ stays in place through a mixture of supportive pressure from the labia and thighs and the tab portion of the body. The shape of the tab keeps Spouti™ from shifting to the right or left, as well as allowing more grip. This allows Spouti™ to remain in place without shifting, during most physical activities! Spouti™ was designed to be comfortable enough to wear for 8 to 10 hours.
We also have a couple of great videos on YouTube that offer some visual explanations!
This video discusses how to put Spouti™ on:
This video goes over some of the specs: