Insulating Tube Cover by One Bottle Hydration

Exact lenght for source tubings. Highly recommended for tubing insulation.

Works great

Keeps my water from freezing in the line

Just not for me

The way this hydration system works requires some airflow to allow the water through the tube. It clearly states it will leak if it isn’t kept upright but my backpack always falls over when I put it down and I could just see water leaking all over or being out of water not realizing it had leaked out. Great idea but not for me. Still looking for the perfect hydration system.