INOXTO Soft Flask,Collapsible Soft Water Bottles for Hydration Vests and Running Packs, Soft Flask Running Bottles for Hiking Cycling(250/500 ml) (2 PCS BIG)

I live these flasks. I’ve purchased them in a couple of sizes. They are great as long as you don’t leave electrolytes in them for 3 weeks to get moldy and gross. They fit well in all my vest pockets and also are comfy to hold. They don’t leak and the cap keeps the bite piece clean Seams are strong and don’t burst with freezing (1/2 full bottle). Great value for the price

These fit perfectly into running a vest. The small size is really perfect for an under 15 miles run. The bigger bottles are just too heavy to be carried all that way! There was no taste of the bottle at all but I did a baking soda/water pre-soak overnight as suggested.

I love it. Replaced all my bottles on my adventures.

I bought these for my daughter when she ran a half marathon and she really liked them

Excellent bottles, practical and very flexible exclusively to wear in the hydration vest, are highly recommended. best of all then have a safety device to avoid spills.