Alpinestars Tech-Air 3 Leather System V2 Size:3X-Large and on a naked bike

and on a naked bike to see how the helmet performed in “clean air

Built from soft polyester with welded seams and a PVC backing

It's distinctive

a benchmark standard-issue piece introduced by the U

Alpinestars Tech-Air 3 Leather System V2 Size:3X-Large and on a naked bikeAlpinestars new Tech Air 3 Leather Airbag System is designed to be worn over a motorcycle jacket, and offers instantaneous, outsized protection by deploying autonomously in the event of a crash, delivering 18x the protection of a standard back protectorplus front of chest and collarbone protection. Alpinestars crash detection triggering algorithm has been developed and refined with millions of kilometers of riding data and thousands of crashes,