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Your cart is empty.Since Osprey was founded in 1974, every single product design has passed through the hands of owner and founder Mike Pfotenhauer, who created his first backpack at age 16. In Santa Cruz, California, the young entrepreneur opened a retail shop in the front of his rental house where backpackers and travelers came for custom-fit, made-to-order packs constructed over several days by Mike himself. As the demand for the great-fitting packs increased, Osprey found itself relocating to its current home in Southwest Colorado. Today, Osprey is a melting pot of diverse personalities, backgrounds and abilities. All share the common belief that adventure is open to everyone and found anywhere.
Amir Sadeh
Reviewed in the United Kingdom on February 5, 2025
I generally use an Osprey bladder for my water and added this to my kit for two reasons - a vital backup in case of a bladder puncture which could be a real problem in remote locations; and to take electrolytes. The 500ml size is perfect for one of my electrolyte tablets and means I can keep the bladder for water and use the bottle for that. It is really strong, has never leaked and does what I need perfectly. I have been using it for around a year now.
The Oracle
Reviewed in the United Kingdom on February 2, 2025
Not cheap ! But in fairness if you take care of it , it seems to last quite well.The size is good , fits my running vest pocket and of course the tube can be cut to size if you put a longer tube in yourself .
MIke B.,
Reviewed in Germany on August 24, 2024
Habe sie in zwei Größen; 370 und 500ml. Sowohl zum Sport, als auch zum so mal mitnehmen super, da sie richtig gut überall in Taschen passen und formbar sind.
Christian K
Reviewed in the United States on July 31, 2024
Functional and easy to clean. No noticeable plastic taste when drinking. I like this size for mixing with a single serving electrolyte solution. The compressible soft body means you'll suck up every last drop on your runs.
Amber Quirk
Reviewed in the United States on June 15, 2024
I needed something smaller to add my nuun to and this soft flask, hooked right on my harness, is the best.
Gus
Reviewed in Canada on March 23, 2024
good quality, doesn’t leave weird taste to the water, but I it misses a lid to the tip where you put your mouth
Billy T
Reviewed in the United States on November 16, 2024
Exactly what is advertised. This is my 2nd flask. Very good buy
Dion
Reviewed in Germany on January 23, 2024
Irgendwie benutz ich das Teil nicht gern. Das Wasser schmeckt jedesmal widerlich.Scheinbar gibt der Kunststoff irgendwelche, bestimmt nicht gesunde Stoffe, ab. 🥺
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