Knitted, breathable and stretchable base layer designed to provide additional coverage against tire roost while still allowing high levels of rider movement. Features Knitted construction is breathable and provides a comfortable tight fit while being stretchable enough so as not to obstruct any rider movements. Knitted construction requires less stitching which also increases rider comfort. Strategically placed padded zones provide additional protection against tire roost. Compatible with all Alpinestars chest protectors.