This pack is perfect for the minimalist at heart, but beware of bounce with a smartphone. I'd buy it again even with its shortcomings. UPDATE 7/9/15: Taped seams have separated all over the pack. My local running store replaced the first one for free and the 2nd one has just completely fallen apart as well. I spoke with Nathan Hydration and they have offered to send a replacement free of charge. GREAT customer service...this pack...we'll see. UPDATE 7/9/15: Taped seams have separated all over the… Full review
The Nathan Intensity running vest is an excellent woman-specific pack for running medium to long distances. With a 70-ounce reservoir and pockets for gels and chews, it has plenty of capacity to cover several hours on the run year-round. Plus, it’s comfortable for hours and stable with no bounce. Best For: I highly recommend the Nathan Intensity to other women who run at least several hours at a time on trails or roads. Men may want to check out the HPL 020 model. Fit The Nathan Intensity is a… Full review
Super for long road runs. This is a great pack for long road runs. It holds your ID, a gel or two, and 4 (8) ounce flasks. I think there is a real advantage to having 4 small flasks than one large 220z water bottle on your back. The weight distributes evenly and allows for better movement. Full review
Great little running pack This is a great little running pack. The rear pocket holds a headlamp, wallet, gel and keys and yes, there is little bounce. There is something to be said for carrying water in two or four 10oz bottles distributed around the hips instead of a 20oz in one spot. The bottles are easy to get in and out of the holders and you can lash gloves and hats on the side. Full review
I liked the bottle when I first got it. After about a month of use it started to 'spit' water from the straw, much like a fountain. It leaks around the base of the straw when it is closed, fountains out like a geyser when the straw is flipped open. There are times when the bottle has sat with the straw open for some time and all of a sudden water geyers out the top. It has spit all over my desk, on the keypad of my laptop, all over the inside of my car. Spills water down my clothes, basically no… Full review
Nathan manufactures hydration belts, vest, and bottle.