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Vapor Air 3.0 7L Hydration Pack

4.444444444444445 out of 5 stars
18 Reviews
Color:Deep Blue/Safety Yellow



Why We Like The Nathan Vapor Air 3.0 7L Hydration Pack

The Nathan Vapor Air 3.0 7L Hydration Pack is the next-generation update to this award-winning series. This vest rides high and tight for a snug runner fit with a Contoured Chimney back panel and moisture-wicking air mesh on the back and shoulder straps to keep us cooler and drier as we run hotter and hotter. At the same time, Nathan's Adaptive-Fit Adjustable Sizing System accommodates most body types, including expanded 1XL-3XL sizes. The Vapor Air comes with a 2L bladder and plenty of storage options for our valuables, devices, and snacks.


  • Next generation in the award-winning VaporAir series
  • 7-liter capacity for water and small essentials
  • Front pockets fit bottles and flasks up to 22oz
  • 360-degree reflective details for low-light visibility
  • Bungee cords and storage loops add external storage options
  • Adjustable fit accommodates most body types
  • Includes 2-liter water bladder
  • Item #NATG03X
60% nylon, 40% polyester
7L (427cu in)
Adaptive-Fit Adjustable Sizing System
Shoulder Straps
air mesh
Waist Belt
Hydration Compatible
Reservoir Included
2 zippered front, 2 stretch front (bottles/flasks), 1 zippered rear (reservoir)
Gear Loops
1 storage
Trekking Pole Carry
Claimed Weight
running, hiking
Manufacturer Warranty
60 day

Overall Rating

4.5 based on 18 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 1 reviews
3 Stars - 1 reviews
4 Stars - 5 reviews
5 Stars - 11 reviews

What do you think about this product?


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4 out of 5 stars

June 21, 2024

Great Pack but sizing seems way off

So far I love the pack. Works great, allows to carry enough water and supplies for long runs when water is not available. The Sizing for Nathan packs is not consistent however. It took me three attempts to get the sizing right for Nathan packs. I first tried the VaporAir Light and ordered it in the L-XXL Size. When it came it was extremely small and no amount of adjusting could allow it to fit me. With that I switched and ordered the VaporAir 3.0 in the 1X-3X size as it was for people with bigger shoulders. This one was way too big and I couldn't get it synched down enough to not just fall off of me. I exchanged this for the L-XXL size and thankfully this time the L-XXL size fit. It actually is almost too big as I have all of the straps and adjustment snugged down as tight as they will go and it barely fits. I am not a small guy (5'11'' and 230 lbs) and haven't fit into a medium size since I was a Sophomore in high school.

Mike B

Originally reviewed on

5 out of 5 stars

June 15, 2024


Years ago I tried a non-nathan hydration vest... it was awful. That led me to 7 years of crazy long runs with handheld... I thought I'd give the VaporAir 3.0 a try and could not be more satisfied. The vest does not bounce, pocket placement is perfect, it has room to carry everything one needs for a long day out. I've even been known to grab it over my day pack for hiking.


Originally reviewed on

4 out of 5 stars

June 4, 2024

Great vest

Love the features and all the pockets of the vest. The bladder is great and feels like it will last a long time. I would give it 5 stars but I think the sizing is a little off. You either have to order XS-M or L—XXL. I’m 6’0 180 lbs and the L-XXL still feels a little loose with everything all the way tightened down.


Originally reviewed on

4 out of 5 stars

February 26, 2024

Great vest with a sizing issue

The choice of VaporAir 3.0 was straightforward after years of using the two previous generations for most of my long runs. The 3.0 is an excellent vest with some improvements over its predecessors, but you should pay special attention to the sizing chart. At 1.83m/83kg (6"/185lbs), I have always used the L-XXL, but with the 3.0, I surprisingly should have chosen the XS-M, sizes I haven't met since primary school.


Originally reviewed on

5 out of 5 stars

February 19, 2024

Great for 20 mile self-supported runs

Great for ultra training and self-supported long runs between 20 - 25 miles without access to running water.


Originally reviewed on

5 out of 5 stars

October 14, 2023

Good Fit and Ample pockets

I decided to replace my Nathan hydration vest that I purchased in 2013 with the VaporAir 3.0 7 liter vest and I have made several 18 plus mile training runs with it. It is much better than my old Nathan vest and worth the purchase. Fit, carrying capacity and color of course, are perfect for my trail running in Montana.


Originally reviewed on

4 out of 5 stars

October 2, 2023

Nice pack even for non-runners!

I’m not a runner (any longer..too many miles too hard when younger, get injuries too easily now). I use this pack for mountain biking. My bike has barely enough room so one small water bottle. This pack allows me to carry plenty of fluids, has nice pockets for energy gels and bars or whatever food I need, plus the zippered cargo pocket on the back can hold my tools, frame pump and emergency clothing if the weather turns foul. My main reason for getting the pack was to be able to carry bear spray on my person. Living in Alaska means I can see a bear even when riding somewhat urban bike trails. I’ve always carried bear spray in a handlebar mounted feed bag, but it’s easy to get separated from my bike when startled by a seeming aggressive bear. The pockets on the shoulder straps easily hold a can of bear spray. It serves exactly the purpose for which I bought it.


Originally reviewed on

5 out of 5 stars

September 19, 2023

Exceeded all expectations

Worth every cent. Had no issues with chaffing on my long runs and love all the storage it has.

Pate L

Originally reviewed on

5 out of 5 stars

September 4, 2023

Excellent Fit & Functionality

This is an upgrade to a Nathan pack that I have had for 10 years. Much improved fit & functionality. The many adjustments make it perfect for a snug fit for running.

Mike K

Originally reviewed on

5 out of 5 stars

August 10, 2023

Great best for larger runners

I was looking for a good vest that would carry enough water and most importantly be big enough. The VaporAir hit all of the requirements and is super comfortable while running. The only time I notice it is when I need some water or gels. The magnet on the drinking hose is probably one of the best features aside from all of the storage. It is super convenient and not an in the way clip or fabric loop. Highly recommend this pack for runners with larger chests. I am about 53” inch around and loops have tons of room to spare.

Chris C.

Originally reviewed on