Welcome to the next level of tire protection. The Tannus Armour is by far one of the best solutions for performance for all levels and styles of bike riding.
Because it sits between your tire and the innertube, you have 15mm of puncture protection on the top, as well as 2mm of sidewall protection. From the manufacturer:
Tannus has been developing tire technology since 2003 and we are the number 1 brand of airless tire technology in the world. At the heart of Tannus is our patented Aither Technology. Aither is a multi-cell foam compound that forms the structure of the Armour.https://tannusamerica.com/products/tannus-armour