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The i3 inflation/deflation system is a patented feature by Aqualung that simplifies buoyancy control. With a simple one-touch control, you can inflate or deflate the buoyancy compensator. When you push the lever down, it simultaneously opens all upper and lower dumps for efficient deflation.
The Wrapture Harness System is a patented design by Aqualung that provides superior comfort and stability. It includes swivel shoulder buckles and an ultra-thin back plate. This system prevents the BC from riding up on the surface and keeps the cylinder perfectly vertical when out of the water, allowing for an upright posture and weight transfer to your hips.
The SureLock II Mechanical Weight Release System is a patented feature by Aqualung that provides a safe, single-pull release for weights. Inserting weight is as simple as a click, and once engaged, the only way to release the weight is to pull on the handle. This secure system can accommodate 20 to 30 lbs. (9 to 13.5kg) of weight, depending on the size of the BC.
The GripLock Tank Band offers a robust and secure way to attach the cylinder to the BC. It eliminates the need for complicated web weaving through multi-slot buckles and has predetermined detente settings for easy setup. The innovative finger saver feature prevents finger pinching when adjusting the band.
The Aqualung Axiom i3 BC features a bladder retraction system for streamlined diving, an adjustable chest strap for a perfect fit, a scooped octo-pocket for easy stowage and deployment of an octopus, and a small security pocket on the flap of a larger drop-down pocket. It also includes knife attachment points and 5 stainless steel and 2 plastic D-rings for attaching accessories.
Review Summary
Jacket Style
27 to 48 lbs (12.25 to 21.78kg)
Right Rear Shoulder & Lower Rear Right Over-Pressure/Pull Dump "Flat" Valves
2 Zippered Utility
Scooped Octopus-Pocket
Swivel, Adjustable Torso w/"Squeeze-Style" Quick-Release Buckles
Yes, 5 & 1 Plastic
Webbing Strap w/"Squeeze-Style" Quick-Release Buckle
Yes, w/"Squeeze-Style" Quick-Release Buckle
Shoulder Mount Oral Inflator
i3 Power Inflator Mechanism
500D Amor Cordura & 1050D Ballistic Nylon
Yes
Releasable: 20 to 30 lbs (9 to 13.5kg)
Non-Releasable: 10 lbs (4.5kg)
8.37 lbs (3.8kg)
X-Large Black/Charcoal: 191649049373
Aqualung Axiom I3 BC Size Chart
| XS | SM | MD | ML | LG | XL | XXL | |
|---|---|---|---|---|---|---|---|
| Height (ft/in) | 5'-5'5" | 5'2"-5'7" | 5'7"-5'10" | 5'10"-6' | 6'-6'2" | 6'2"-6'5" | 6'2"-6'5" |
| Weight (lbs) | 100-125 | 120-155 | 150-165 | 160-190 | 180-210 | 195-240 | 230-270 |
| Waist (in) | 30-42 | 30-42 | 33-45 | 35-47 | 38-50 | 41-53 | 44-56 |
| Over the Shoulder (in) | 33-41 | 37-45 | 40-48 | 42-50 | 44-52 | 46-54 | 46-54 |
| Total Integrated weight (lbs) | 30 | 30 | 30 | 30 | 40 | 40 | 40 |
| Releasable weight (lbs) | 20 | 20 | 20 | 20 | 30 | 30 | 30 |
| Lift (lbs) | 31 | 31 | 36 | 41 | 44 | 47 | 54 |



The Axiom i3 is a feature-rich, jacket style BC that incorporates Aqualung's patented i3 inflation / deflation system. Its amazing comfort and stability come from the integrated Wrapture Harness System. The Axiom is made from durable, fade-resistant materials. Integrated weights are held securely in place with SureLock II mechanical weight system and the cylinder is secured with the GripLock tank band. Wrapture Harness System (pat. pend.) - Using patented swivel shoulder buckles and a proprietary, ultra-thin back plate, the Wrapture provides unsurpassed comfort and stability. Wrapture prevents the BC from "riding-up" on the surface. Out of the water, the Wrapture keeps the cylinder close to your center of gravity and transfers the weight to your hips. The result is the ability to stand up straight with a cylinder that is perfectly vertical.
i3 Control System (patented) - provides easy, one-touch control for inflation and deflation. Eliminates the traditional inflator that dangles at the end of a corrugated hose. i3 is simple and intuitive - just lift-up on the lever to inflate and push down on the same lever to dump air. What's more, when you push the lever down, all the dumps, upper and lower, open at the same time! Inflator comes with a 3/8" threaded low pressure quick-disconnect hose. The pull-down oral inflator is easy to deploy, use and stow.
SureLock II Mechanical Weight Release System (patented) - provides a safe, single-pull release. Inserting weight is as simple as insert and "click". With SureLock, your weights are secure in the BC. Once engaged, the only way to release the weight is to pull on the handle. The Sure-Lock II Mechanical Weight Release System with 20 to 30 lbs. (9 to 13.5kg) Capacity (sizes dependent). The Axiom also has fixed non-releasable weight pockets attached to the cylinder band with capacities of 10 lbs. (4.5kg).
The GripLock Tank Band is a strong, secure way to attach the cylinder to the BC. Gone are the days of complicated web weaving through multi-slot buckles. Predetermined d©tente settings make set-up simple. No adjustments are necessary when switching cylinders of the same diameter. Best of all, you don't have to worry about pinching your fingers with GripLock's innovative finger saver feature (pat. pend.)
A bladder retraction system is used to pull in the sides of the bladder during deflation. This keeps unit streamlined and reduces drag. An adjustable chest strap can be raised or lowered on a rail system. This not only ensures a good fit but also keeps strap from running across top of a dry suit valve. A scooped octo-pocket on the top, front of the right lobe makes it easy to stow and deploy an octopus. The octopus remains visible and accessible throughout the dive. Some divers may find it useful to run their instruments behind the left pocket and out the scooped opening on the top, front of the lobe. Pocket within a pocket - A small security pocket is found on the flap of a larger drop-down pocket. Knife attachment points are found on the left lobe which will accommodate many of the Aqualung knives. This location provides easy access to the knife. BC features 5 stainless steel D-rings and 2 plastic D-rings for all your accessories. Right shoulder pull dump provides an additional dumping option. Rolled neck collar for comfort. Axiom i3 provides from 27 to 48 lbs. (12.25 to 21.78kg) of Lift. BCD comes with an owner's manual.
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