Ultraflask, 500ml soft flask, 17 oz, by Orange Mud

I got these flasks for the front of my orange mud hydration backpack. Sometimes the bladder is just too much water. But I need more than I can have an a handheld water bottle.

Today I ran 12 miles in hot and humid conditions and it worked great! I felt like the straws were in my peripheral vision a bit until I drank them down. I liked that as I drank, the flasks collapsed.

I know it’s weird, but I kind of hate dealing with the bladder. I like to get everything ready for my run the night before and the bladder flops around. These little guys don’t leak or flop and see much more manageable.👍🏻👍🏻👍🏻

I have a hydration vest which I love (from another company) except the bottles are too small. The 500 ml straw bottles from Orange Mud fit in it perfectly & provide the extra water I need for a longer hike/walk w/o having to carry a pack w/ a bladder. So far I'm very happy with this purchase.

Got an extra flask, 17oz. Quality product and no leaks. The bite valve is awesome too.

The original one that came with my pack had a small leak. I purchased two ultra flasks and they appear to be a little thicker and fits perfectly into my pack. The bite straw is a nice added touch and holds the perfect amount of fluids for my runs or hikes.

It is soft sided not rigid which works much better if wearing in a hydration pack. Comes with a straw that won't least. Just bite on the end to open the valve. Excellent product.