Shimano Rokko R12 All-Around 12L Hydration Pack - BLACK JAZZBERRY Helmet Holder:This versatile clip allows you to securely attach your helmet to the bag. Eyewear Holder:When you take off your eyewear, you can hang it in this dedicated holder. 3D Panels:Using innovative materials and accurate 3D pattern technology, Shimano shapes each panel of the bag to create a body-hugging fit that stays molded to your back. Whatever your riding position, you get a stable, sleek, and comfy ride. Hydration:Hydration compatible bag is equipped with a dedicated section for securely holding the hydration system. Stretch-Fabric Side Pockets:Versatile stretch side pockets provide storage for an extra water bottle with your favorite thirst-quencher.