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Aarn Liquid Agility 30 Liter Backpack - Light Hiking Gear

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$ 189.95

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Product Description

Meet Our high-performance fully featured zip-opening daypack - Liquid Agility.  

Light Hiking Gear’s Liquid Agility daypack is the best hiking backpack for the most active of people, including trekkers, bikers, snowshoers, cross-country skiers, and more. This bag utilizes Aarn's patented Flow-Motion system, making it the top hiking backpack in terms of comfort.

Female hiker carrying an Aarn Liquid Agility daypack up steep hill - Light Hiking Gear

This comfortable backpack is ideal for all outdoor activities and is designed to be both comfortable and resourceful. Here are some of the activities that Liquid Agility works well with:

  • Adjustable shoulder harness with an 18 cm range, an auto-mold frame, and true fit shoulder straps make this an extremely comfortable backpack
  • Auto-form hipbelt and Web-loc compression help to balance and distribute weight evenly
  • The haul loop and two outside stretch pockets assist in helping you to keep organized and find items quickly
  • Dri Liner Optional (check availability)

Overnight Camps - up to 3 days

With a 30 liter capacity (not including front balance pockets), the Liquid Agility can easily accommodate everything necessary for 1-3 day excursions.


Cycle helmet connects to the backpack with a carry on front vertical strap. The front pocket works great to hold bicycle locks, and there is a hydration pocket to hold your water.

Snow sports

There is a rear access to the main compartment as well as front and side attachment straps for avalanche probes, skis, ice axe, crampons, or a snowboard. Liquid Agility features a tortoise shell protective top pocket for glasses.


Front pocket is perfect for wallets and the hook can serve as a key ring. Trekking poles can attach to the front of the bag and the bag is designed to adjust easily.



  • Sized for maximum agility & forward visibility
  • 2 mesh pockets
  • 500D Kodura, 70 x 100D ripstop nylon
  • Color: Grey/ green



1.59 in the bags

+ .26 in the exterior mesh pockets

6 L in the bags

+ 1 in the exterior mesh pockets


Height: 11.8 Width: 5.1

Depth (front-back): 4.3

Height: 30 Width: 13

Depth (front-back): 11

Pair 9.3 265
Aarn compact balance pockets


  • Mid-volume balances unobtrusiveness and weight carrying ability
  • Waterproof Dri-liners
  • Zip flaps flip up for easy access, flip down for rain
  • 4 mesh exterior pockets with compression cords
  • Converts to a daypack with shoulder & sternum straps
  • Daypack carries on front for security & easy gear access
  • Sport-S is 2" (5cm) shorter than the regular size and is suitable for backlengths of 13.5" (34cm) or less.
  • 500D Kodura, 210D, 100D x 70D & 40D ripstop nylon
  • Color: Green/ grey





2.6 in the bags

+ .53 in the exterior mesh pockets

10 in the bags

+ 2 in the exterior mesh pockets


3.17 in the bags

+ .53 in the exterior mesh pockets


+ 2 in the exterior mesh pockets


Height: 11.4 Width: 6.3

Depth (front-back): 4.7

Height: 29 Width: 16

Depth (front-back): 12


Height: 13.8 Width: 6.3

Depth (front-back): 4.7

Height: 35 Width: 16

Depth (front-back): 12

Short 10.6 300
with Liners 13.6 386
Regular 12.3 350
with Liners 14.7 416
Aarn Sport balance pockets

  1. Lay the shoulder straps flat so you can have the chest strap right way up. The beige colour webs should be at the top.
  2. Clip the balance pockets together using the side buckles.
  3. Clip the adjustable spring clips to the matching beige 20mm web loops at
  4. the top of the pockets. Clip the hooks to the matching grey 15mm web loops at the top of the pockets.
  5. Put the pack on and adjust the settings of the top and bottom webs in their respective buckles so that the chest strap sits at a comfortable height across your chest.


7.9 30


Height: 21.7 Width: 13.4

Depth (front-back): 13

Height: 55 Width: 34

Depth (front-back): 23

Pounds (without/with dry liner)
Kilograms (without/with dry liner)

2.8 / 3.02 1.27 / 1/37
Key Fabrics: 500D Kodura nylon; 210D & 40D ripstop nylon

Color: Green/grey

Recommended Maximum Load (Pack only): 31 pounds (14 kg)

(Click on Buttons to Evaluate and Purchase)

These allow you to clip climbing hardware

Alternative to sternum straps when Balance Pockets are not used.

I found none of the usual sore spots (shoulders, hips, upper back) when I loaded the Liquid Agility with 35 pounds for a 20-mile day, as compared to virtually any other traditional internal frame pack. I'm rather convinced that decoupling shoulder and hip belt movement from the load bearing suspension components has a significant impact on muscle fatigue when carrying weight for long days. The front pocket system, which is integrated with the suspension, greatly improves the maximum load carrying capacity of the Liquid Agility pack. It carries a 30 lb (14 kg) load in outstanding comfort relative to most 30 L-range internal frame packs on the market.

Ryan Jordan. review.

I am extraordinarily pleased with my Aarn Liquid Agility pack. I recently took a 6 mile / 5 hour hike that had an average slope of approximately 25 percent and a maximum slope of 60 plus percent. I was carrying roughly 17 pounds in the pack. At the completion of the hike when I removed the pack, I had no sore spots and no aches in the back or shoulders. During the steepest portions of the climb I was using my hands pretty much continuously. There was no binding or pulling from the pack on either my shoulders or arms.

I used the optional Balance Pockets on this hike. The convenience offered by being able to access my stuff (glasses, GPS, maps, snacks, etc.) without removing my pack was a huge plus. I took advantage of the internal pocket and zip opening for a hydration pack, carrying 3 liters of water with electrolytes with me. It was nice to have my fluids so easily available.

In summary, with the pack and Balance Pockets I was able to walk upright with an easy movement. I had uninhibited freedom to use my hands and arms. I arrived home unstressed from carrying the pack. As a bit of frosting on the cake, getting off and on with the pack was easier than with either my day pack or bike pack. The Balance Pockets on the front make on and off of the loaded pack a bit like putting on a coat.

Roland Etcheverry, PhD., Manitou Springs, CO USA





Sore Shoulders

Pull back force on shoulders from weight behind

Add Balance Pockets, or if using them, put more weight in them and loosen front shoulder strap webs

Too much weight on shoulders

Loosen front shoulder strap webs

Hipbelt has slipped down

Raise hipbelt & retighten &/or shorten

Balance Pockets are pulling down on bottom of shoulder pads

Increase back length: Pull up on navy top back panel web

Bodypack is too hard to put on

Incorrect technique used

1. Loosen hipbelt webs before putting the bodypack on for the first time.

2. Follow this sequence: Place hands underneath Balance Pockets; grab hold of hipbelt center buckles, lift both Pockets & hipbelt up to the right height; clip center buckle together & tighten the tension web loop at top and bottom to get an even pressure at the top and bottom of the hipbelt

3. When taking the pack off, before releasing the hipbelt center buckle, loosen the side buckles. With familiarity, you can release the 2 tensionlock buckles on each side with each hand simultaneously, by pulling the buckle ends up. Now you have set the pack up to be easy and quick to put on next time

I do not have the coordination anymore to master this simple sequence

Substitute Universal Balance Bags for Balance Pockets. These quickly and easily attach after you have put the pack on

My pack leans to one side

Your pack will lean to one side, like any brand of pack, if you have the shoulder straps and/or hipbelt adjusted unequally on both sides, or you have loaded the pack unevenly.

First check that the top stabilizer straps are equal length and the front shoulder strap webs are also equal length. Now check that the hipbelt parts are adjusted to equal length and angle on both sides of the center base plate and the side tension adjustors (cord or web) are of equal length both sides. Now with all these adjustments made, check that the hipbelt ends are sitting at a similar position on each side of your pelvis with the pack on. Finally, check that your U-Flow movement (the movement when you lift one shoulder), is equal on both sides. With everything centered, including the load, there should be no reason for your pack to lean to one side.