Alpinestars Bionic Tech V2 Protection Jacket Incorporating a new, innovative grid protection technology that is lightweight and ventilated, this versatile jacket has CE-certified protectors incorporated into the slim fit, stretchable material for high levels of comfort. Compatible with Alpinestars Bionic Neck Support and with Bionic Hydration Pack. Construction & Features Slim fit stretchable fabric for a comfortable fit. Features a floating, highly ventilated and flexible rigid Chest Protector with flexible side wings that adapt to the rider’s body. Central front zipper for a better fit and ease of donning. Additional front padding on the arms, sides and chest for enhanced roost protection. High abrasion resistant fabric on the arms over the protectors for additional protection. Height adjustable kidney belt for optimal levels of fit. BNS compatible with a removable back puck panel and elastic BNS cords on the shoulders straps. New Cell Technology back protector is highly ventilated and flexible for enhanced rider comfort. Bionic Hydration Pack compatible.