Alpinestars Stella SMX-1 R v2 (Vented) Boots Color:BLACK/VENT Curved 3D visor and ratchet

Curved 3D visor and ratchet reduces air turbulence and noise

Cheekpad Cooling Ventilation System

Pant connection zipper for a secure fit

Nylon Strap Double D-Ring Retention System

3D Max-Dry System II Interior

Alpinestars Stella SMX-1 R v2 (Vented) Boots Color:BLACK/VENT Curved 3D visor and ratchetAdvanced microfiber main upper construction Soft TPR heel insert allows freedom of ankle movement Ergonomic TPU shift pad Ergonomic boot shaping for forefoot streamlining Angled closure strap follows natural shape of rider's instep Front Velcro(R) closure system, with reverse zip Closure system reinforced with aramidic fiber wires Compound rubber sole with grip patterning Instep and Achilles accordion flex zones Thermo welded flex grooves control