Supertech M10 Deegan Helmets Alpinestars Alpinestars approach to the creation of the advanced technology in the Supertech M10 draws on its depth of experience from over half a decade of world class innovation across the spectrum of motorsports and especially, its deep rooted commitment to motocross. As with all other categories of technology that Alpinestars has mastered, bringing a new, highly complex, product to fruition requires specialist experience and know-how and a project plan led by the best brains in protection development. ECE / DOT Carbon shell construction utilizes a highly advanced molding technology with a multi-composite combination Three layer composite combination Unique, patented, visor release system Patented A-Head fitting height and angle adjustment system Collarbone protection is an important design feature of the Supertech helmet shell base profile Multi-Directional Impact Protection System: MIPS Emergency Release System (ERS). Hydration system compatibility Included: helmet bag Adult Medium = 2.7lbs