Double-wall construction keeps water cold twice as long, while our innovative Jet Valve ensures you are drinking the water, not wearing it. Double-wall construction keeps water cold twice as long as regular sport bottles Innovative, self-sealing Jet Valve eliminates splatters and spills Lightweight, easy-squeeze bottle delivers the right flow to quench your thirst 100% BPA-Free TruTaste polypropylene with HydroGuard lets you taste your water, not your bottle. Positive lockout for leakproof transport Wide-mouth opening is easy to fill with ice and water and a breeze to clean Also keeps warm beverages warm during cool weather rides Dishwasher Safe: All parts are top-rack dishwasher safe