CamelBak Groove Insulated .6L Water Bottle Turns tap water into fresh, great-tasting water anywhere you go Easy to refill and easy to use bottle with a filter built into the straw Certified by NSF International to reduce chlorine, taste and odor Sustainable, plant-based filter lasts about 3 months or 48 gallons of water CamelBak got your BakTM Lifetime guarantee