Rated 5 out of 5 by Pete F from
Don't waste time with other fancy flasks.The Hammer flasks are perfect for trail runs that will require fueling. They are easy to hold in your hand and hold just enough fluid to deliver 5 or 10 (if you are holding two) ounces of your choice of nutrition which should get the "in shape" runner about 2.5 - 3 hours of comfortable running.
Date published: 2015-07-25
Rated 5 out of 5 by Connie from
ConvenienceMy Hammer Flask is easy to use and comfortable to hold while running. It is small enough to fit in my back pocket or bento bag on my bike. LOVE my flask!!!
Date published: 2015-05-07
Rated 5 out of 5 by fastjuniors from
Great form factor, Junior-friendlyThis is a great way to carry 5 servings of Gel. You save money (jugs are cheaper than individual packets) and the environment (no trash to drop or dispose of) and no messy empty wrappers in your jersey. As an added benefit, this flask has improved our junior cycling team's nutrition compliance while on long rides. It is much easier to pull the flask out of your jersey and take a swig than trying to open a foil packet with one hand riding down the road.
Date published: 2014-08-25
Rated 2 out of 5 by zzSQL from
Works but could be better. Here's howI use these flasks for racing mountain bikes and while they adequately store the gel I use, they're hard to open and close when you're breathing heavily and under race stress. In other words, it takes two hands to close the bottle unless I want sticky gel on my gloves. (I don't want that)
If I could make a recommendation, change the way the bottle closes.
Either add an additional groove so I can close it with my teeth or change the top to some sort of flip top I can do with one hand.