Bluewave Reusable 55mm Loop Cap
The Bluewave Reusable Loop Cap makes it easier to carry your bottle and also allows you to drink directly from the bottle's big mouth opening. The 55mm loop cap will work interchangeably with any of our 55mm mouth bottles: Daily 8 water bottles, glass water bottles, & Bullet water bottles. If you are using it for other bottles, please check the mouth first. Not all bottles have same size mouth and cap may not work with all other bottles due to thread.