FlipBelt Arc Water Bottle Bundle - 11 Oz + 6 Oz Curved Hydration Running Bottles

+ Doesn't leak at all -- ran for almost 2 hours and nothing leaked.+ Flow from both small and large bottles was great.+ Curved design feels far more comfortable than a cylindrical bottle. It's worth the extra cost.+ Pro-tip: Fill it with water partially and freeze it. It reduces the sloshing sound and keeps the water colder. On a 10 mile run, I fill it 75% of the way and freeze it and it still melts in time.+ Secure in the Flipbelt. HOWEVER, with the large bottle, make sure that you push it in enough that the lip of the Flipbelt catches the bottle. Otherwise, it will fall out from the up and down motion of your run.- I don't love water sloshing around in a partially filled bottle but really, there's not much any water bottle can do to prevent that. The partially freezing tip helps with that.

Pleased with these sizes, fit, and holds water nicely when running

I like the slim profile of these bottles, fit nicely into the side pockets of my running tights. I prefer that over using these with my Flipbelt. It fits but not as convenient as the side pocket access.

Was looking for a solution vs. the collapsable bottled to fit in Running Buddy Pouch. Perfect fit for the XL!!! Loved it so much I ordered the smaller bottle for the small Running Buddy pouch. The spout lock works great and the do not leak. Highly recommend!!!

Highly recommended

Easy to use with the flip belt. Must have got distance runners!

Perfect amount of water for half marathon run and does not distract from the run.

These water Bott fit perfectly in the belt. They stay in there during 5+ miles. No leaks!