Nalgene Wide Mouth Easy Sipper for 1L Bottles - blue

The Nalgene Easy Bottle Insert is ideal for use with your 1-liter (32 oz) Nalgene Wide Mouth water bottle with a 5.3 cm wide-mouth opening (does not fit other Nalgene bottles). It simply slides into the neck of the bottle and compensates for the only drawback of wide-mouth bottles—namely, that more liquid comes out of the bottle than you can drink at once. Always remove the bottle insert before filling or cleaning.