Ultraflask, matraz blando de 600 ml, 20 oz, de Orange Mud

I've never used an ultraflask before, but purchased two to go with a new OM Gear Vest Pro. Things I love: 1) they collapse as I drink from them, which really minimizes the amount of air coming through the line; 2) they never leave the vest, so I don't have waste time/thought/energy fumbling with them; and 3) they're extremely light weight. One reviewer said the nozzles hit them in the face, but that's easily fixed by tucking the nozzle into the loop on the shoulder strap of the gear vest. Problem solved. The ultraflask is just a really well-designed product. I use Maurten drink mix for my hydration/fuel, and I especially appreciate that the ultraflask is meant to hold 500 mL. It would be great if OM could print a 500 mL fill line on the ultraflask, but I'm smart enough to work around that.

I like the ultraflask. I’m just getting g into running long distances so did t know what to expect. The ultraflask very well and is quite easy to use. Also very well made .

Impeccable product, survives anything you can throw at them. I have been using the same soft flasks for over 2 years, surviving through 10+ Spartan races. The only problem I had with them is they got moldy, but that was because I did not wash them after every single use (completely taken apart), and let them completely air dry.

Absolutely loves this bottles with the longer straws.

Always great quality.