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Replacement Bladder
$125.95
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BCD Pro-Kit Mini
$125.00
Buoyancy Control Device
A BCD (buoyancy control device) holds your tank and lets you add or release air so you stay neutral at any depth. Our selection includes jacket-style BCDs from Zeagle, Mares and Genesis, along with back-inflate and wing systems from XDEEP and Hollis. Divers who carry two tanks will also find sidemount rigs here.
Most new divers start with a jacket BCD because it feels stable and secure at the surface. Back-inflate designs and wings put the air bladder behind you, which makes it easier to hold a flat, horizontal position. That's why photographers and technical divers tend to prefer them. If you dive Southern California's kelp beds in a thick wetsuit or a drysuit, look closely at lift capacity and integrated weight pockets so you can skip the weight belt.
Fit matters more than features. Stop by our Montclair, CA dive shop to try BCDs on over your exposure suit, and local divers can test one in our on-site pool before buying. You can also browse integrated weight BCDs, sidemount systems and BCD accessories.
Gear Info
Scuba BCD Sizing & FAQ
Ensure a perfect fit and find the right buoyancy control device for your diving style. Read our sizing guide and common FAQs below.
Scuba BCD Sizing & Fit Guide
- Measure your chest and waist over a thin shirt; most BCDs fit true to jacket size.
- Check lift capacity. Warm-water divers need 15–25 lb; cold-water drysuit divers often need 35 lb or more.
- Confirm tank band height aligns with your center of gravity; a well-balanced BCD reduces trim weight.
- Test range of motion. Raise arms and simulate reaching valves. Straps should stay snug without pinching.
Need personal advice? Visit us in store or call (909) 621-4171 to speak with our dive specialists and lock in the right fit.
A BCD, or buoyancy control device, is the piece of scuba gear that helps a diver add or release air to control buoyancy underwater. It also supports the tank and helps the diver stay comfortable and stable at the surface.
The right scuba BCD depends on your diving style, body fit, travel needs, and personal preference. Some divers prefer jacket-style BCDs for comfort and familiarity, while others choose back-inflate or backplate-and-wing systems for a more streamlined feel underwater.
A jacket-style BCD wraps air around the torso and often feels more stable on the surface, which many new divers like. A back-inflate BCD places lift behind the diver, which can create a more streamlined trim underwater and appeal to more experienced or travel-focused divers.
Travel BCDs are a great choice for divers who want lighter, packable gear for destination trips. Many travel-friendly models reduce bulk and weight while still offering comfort, lift, and essential features for warm-water and resort diving. Travel-ready BCDs are already represented in the collection through models like the Mares Magellan and Hollis LTS.
Yes, every scuba diver needs a properly fitting BCD. For beginners, a comfortable and easy-to-use BCD can make buoyancy control, surface stability, and overall confidence much better during training and early open water dives.
A scuba BCD should fit snugly without restricting movement or breathing. The tank should feel secure, the shoulder and waist adjustments should hold the BCD in place, and the setup should stay comfortable both at the surface and underwater.
Important BCD features include fit, lift capacity, weight integration, pocket placement, trim, durability, and overall comfort. Some divers also look for travel-friendly materials, back-inflate design, modular systems, or streamlined accessory storage depending on their setup and dive goals.
Yes, many divers choose a BCD that works for both travel and local diving, but the best choice depends on exposure protection, tank setup, and how much lift and storage you need. Some lightweight models are excellent for travel, while more rugged BCDs may be better for frequent local use and colder-water configurations.
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