The FC System was designed with one thing in mind: to bring together the most compelling details into one all-inclusive hydration system. - Streamlined Storage: New Profile Design FC Hydration Systems were designed with one thing in mind to create a clean front-end solution that thoughtfully integrates hydration, nutrition and electronic needs. Integrated storage streamlines nutrition needs into rear airfoil compartment. - Forward Computer Mount: Computer mount positions perfectly at the front of the system for optimal viewing. - Sealed cartridge bearings - No-Splash Refill Port: Brand new patent-pending refill port shields splash back. - Dual Straw Positioning: Strategically flexible to fit your preferences. A simple turn of the dial positions straw on the right or left side of the bottle. - Convertible Straw: Swap straw with gap cap to place straw in the front or rear of bottle. Specs - Construction: BPA-Free, Foodsafe HDPE Bottle - Capacity: 25oz (739ml) - Width: 65mm-140mm (center to center) - Weight: 250z (397g)