Buoyancy compensator devices, or BCDs, are an important type of diving gear. They help divers maintain neutral buoyancy while exploring beneath the water's surface. Aqualung has innovated BCD product options to offer you safety and comfort wherever you choose to dive. Aqualung has designed jacket, back, and hybrid inflation BCD products for recreational and professional scuba divers alike. Each BCD incorporates Aqualung's innovative technologies to ensure you have everything you need for an enjoyable dive.<br><br>Strong. Sleek. Secure. The Pro HD is a wrap-around, jacket-style BCD designed to fit the female diver. With its adjustable waistband and specially curved shoulder straps, you can customize it for a perfect fit. Plus, its lower profile lobes and shorter torso length help it rest comfortably on the hips. Hybrid Jacket ADV-Style: Jacket combined with back inflation unit gives you the best of both worlds: a streamlined profile during your dive and the ability to float comfortably at the surface. The Pro HD is a wrap-around jacket with weight integration that is sure to appeal to a wide range of divers. It provides excellent value because it is so feature-rich for the price. Due to its advanced ResisteK material, it will hold up to the rigors of salt and chlorine and retain its good looks. Wherever you want to take it, it's ready to go. 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 lbs (9kg) capacity. The Pro HD BC also has fixed non-releasable weight pockets attached to the cylinder band with capacities of 10 lbs (4.5kg) in all sizes except small and x-small.Size small accommodates 6 lbs (2.72kg) and no trim weight pockets on the x-small.<br><br>A proprietary backpack has a built-in carrying handle and a traction pad to reduce tank slippage. The large, easy-to-access, utility pockets found on either side of the Pro HD have two-way zippers with zipper pulls. There is an attachment loop inside the left pocket. The waistband is adjustable in the back to accommodate a wide range of waist sizes. The low-profile flat valves reduce drag when moving through the water. Fixed pockets on the tank band increase weight capacity and help provide proper trim in the water. 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. A positioning strap allows you to set the Pro HD at your preferred height each time.<br><br>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 for all of your accessories. The Pro HD comes equipped with Aqualungs Power Line Inflator with an increased fill rate which is now, one of the highest air flows in the industry. The Power Line is an environmentally sealed unit for less maintenance, has integrated hose clips for attachment to the LP hose for a streamline and low profile. The inflator is equipped with a cable activated rapid exhaust at the top, simply pull down on lower unit to dump air. Right shoulder pull dump is easy to locate and use. Lower rear dump is useful for horizontal or head down orientation. Large pull bobs are easy to locate and grip with thick gloves. The chest strap can be adjusted for personal comfort. The Aqualung Pro HD BC provides a lift capacity of 23 lbs to 39 lbs (10.43 kg to 17.69kg) depending on size. BC comes with a low pressure 3/8" threaded hose, and an owner's manual.