Aqua Lung Dimension Back Inflation BCD

# Overview Aqua Lung's **Dimension** is a back-inflate BCD aimed at recreational divers who want jacket-like comfort without the bulk. Built from fade-resistant **ResisteK** fabric and anchored by the brand's **Wrapture™ harness**, it hugs the torso on land yet releases into a free-floating feel underwater. Lift sits in the 35–40 lb (15–18 kg) range and overall weight is roughly 3.2 kg, so it travels more easily than most full-feature rigs. Integrated **SureLock II** weight pockets hold up to 9 kg ditchable plus 4.5 kg trim, and buyers can choose a conventional Powerline inflator or the lever-style **i3** system. # Key Features * **Wrapture™ harness** – pivoting shoulder buckles and an ultra-thin back-plate spread cylinder weight comfortably and keep the BC from riding up at the surface. * **ResisteK shell** – abrasion and UV-resistant material tested to avoid fading in salt or pool water. * **SureLock II integrated weights** – slide-in cartridges that "click"�� home and ditch with a single pull; optional rear trim pockets balance your trim. * **35–40 lb lift bladder** – enough buoyancy for aluminium or light steel tanks in tropical or temperate water, with retraction bands to streamline the profile. * **Inflator choice** – classic hose-mount Powerline or the intuitive lever-operated **i3** control that inflates when lifted and dumps when pressed down. * **Storage touches** – two zipped cargo pockets, an octo holder, a console sleeve and five stainless D-rings cover most accessory needs. # The Good * **All-day comfort** – Wrapture spreads weight so well that many reviewers forget they are wearing a tank during shore walks. * **Stable trim** – rear inflation and harness geometry keep you horizontal; it also rides up less at the surface than typical wings. * **Tough yet tidy** – ResisteK fabric shrugs off luggage abuse and chlorine, while retraction bands stop the bladder from taco-ing around the tank. * **User-friendly weight release** – SureLock cartridges load blind and dump reliably, great for students or occasional divers. * **i3 option** – the lever lets you add or vent gas one-handed even while inverted, a plus for photographers and dry-glove divers. # The Bad * **Heavier than travel specialists** – at just over 3 kg it still beats jacket BCs, but minimalist travellers may prefer the lighter Rogue or a true wing. * **Bulk when packed** – the rigid back-plate and wraparound pockets stop it folding completely flat. * **Surface attitude** – although improved, some testers still find a backward lean when fully inflated in chop. * **Price premium** – Australian street prices hover around AU \$1,200–1,350, a step up from entry-level back inflates with similar lift. * **i3 familiarity curve** – dive centres may not stock spare parts and buddies unfamiliar with the lever could be confused in an emergency. # Verdict The **Aqua Lung Dimension** strikes a savvy balance between comfort, durability and in-water poise. Divers who spend most of their time in single-tank, moderate-weight setups will love the Wrapture fit and secure weight release, while the optional i3 inflator brings a dash of innovation. It is not the lightest choice for carry-on warriors, and tech or cold-water divers will need more lift, but for mainstream recreational use the Dimension remains one of the most refined back-inflates you can buy in 2025.