We love our wide mouth Nalgenes; they are easy to fill and clean. What we are less keen on are the impromptu showers from the sloshing while drinking on the move. The Nalgene Easy Sipper solves that, it fits snugly into the neck of the bottle and controls spills and splashes. You get a nice controlled flow. It's simple to pop the Easy Sipper out to clean or fill your bottle. It's Dishwasher safe, and you get the best of both worlds!
Fits the Nalgene Tritan 1L/32oz and 1.5L/48 oz Wide Mouth Bottle