Keep water cooler longer in this excellent bottle.Features:*Double-wall construction with insulation keeps water cold twice as long as regular sports bottles*Spill-proof, self-sealing Jet Valve*New removable nozzle for easy cleaning*Positive lockout for leak-proof transport*Lightweight, easy-squeeze bottle*BPA -Free, TruTaste Polypropylene with HydroGuard*Also keeps warm beverages warm during cool weather*610ml