Alpinestars Bionic Air Back Protector Insert for Riding Jackets

Built using two different layers of honeycomb structures, Alpinestars� latest back protector insert is lighter and much more flexible than their...

Source: http://www.esportbike.com/forums/showthread.php?t=144326&goto=newpost

Marco Lucchinelli Thomas Lüthi Ernie Lyons