Wide-mouth bottles are easy to fill, but tend to slosh when you try to sip while moving. Install this handy insert to tame the tempest in your bottle. Add it, stay dry, and smile.
Features:
Insert provides a smaller drinking opening to block splashes
Larger fill-through drain lets you add liquids without removing by pouring water into the top
Opening is sized for both kids and adults
BPA Free
Food-grade silicone rubber material won't absorb or retain odors and tastes
Can be sterilized by boiling and is dishwasher safe
Flexible design is sized to fit wide-mouth bottles from most manufacturers, including Nalgene, Cyclone, Bison and GSI