Nalgene Water Bottle Splashguard

Universal fits most wide mouth bottle openings. The SplashGuard is a plastic insert which provides a smaller drinking hole, blocks the splash, is easily removed for cleaning and is dishwasher safe. Allows for easy filling without removing the SplashGuard. Fun tip: you can poke them down into your friends bottles for a classic camping prank, just make sure they can fill their bottle back up after they fish it out.