ALPINESTARS A-0 Roost Base Layer Top - Anthracite/Black - S/M 4750020-141-S/M Halo Drystar Jacket Converts the stock diaphragm spring

Converts the stock diaphragm spring to six heavy-duty coil springs and provides a more progressive linear engagement

Upper constructed from innovative and lightweight microfiber material with action leather on toe box Redesigned instep and Achilles accordion flex zones

TPU shin plate and shift pad offer support and resistance to impacts

Sublimated graphic on backhand

compact and flexible handguard

ALPINESTARS A-0 Roost Base Layer Top - Anthracite/Black - S/M 4750020-141-S/M Halo Drystar Jacket Converts the stock diaphragm springKnitted 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