Leak-free design keeps liquids inside; True 26 oz bottle capacity (768 mL); Bottle made in the USA and is lead free, BPA-Free and HDPE food safe certified; 2 straw positions along with cage and mount adjustments allows for perfect straw location; Included drink valve allows for fluid intake only, no air intake which causes bloating; Bite valve keeps fluid at top of straw for faster drinking; Solid Refill Lid is ideal for adding powder, tablets and fluid and ensures system is completely leak-free; Refill area is located behind the computer allowing you to keep the computer screen clean and clear; Computational Fluid Dynamic (CFD) airflow optimized and velodrome aero testing approved; Kit Includes: Bottle, Straw, Drink Valve, split and slotted lids, Leak-Free Breather Valve, Dolphin Tail straw retainer, Hardware and comprehensive instructions