I am pleased with this vest overall. I originally bought it to use on my longer trail runs in TX but, because it is so light weight and versatile, I find myself using it on shorter distance runs as well. I purchased the optional 1.5 liter bladder and found that the vest felt more stable when using it. Having that counterweight in the back helps even things out. The material is comfortable but took some getting used to. On my first few runs the shoulder strap rubbed a blister on the side of my neck. After a few more runs and using the bladder it stopped doing that. My only real complaint with the vest is with adjustment straps. I found that it takes a while to get the vest to fit right and then the straps tent to loosen during my runs. I spend a lot of time adjusting the straps while running to keep the vest fitting correctly. Other than that, I would definitely recommend it for the price.
This review was written in the old system and had content requirements that are different than reviews written today.