These are replacement tongues for the Pro Tour liner only. They are sold in pairs and come in three different thicknesses.
The Flex is a direct replacement for the tongue included on the Pro Tour Liner. It is stiff at the top with flex at the bottom.
The Power Tongue is stiff all the way down.
The Thick Tongue is the highest volume tongue option that we offer. It is stiff and thick all the way through.
Tongues are sized to your liner foot size. Sold in pairs.