Back-Inflate BCDs (Buoyancy Compensator Devices) for Scuba Diving

Explore our selection of back-inflate BCDs, engineered for streamlined trim, low drag, and precise buoyancy control. By placing the air cell behind the diver, these BCDs promote a natural horizontal position underwater, reduce front bulk, and deliver excellent freedom of movement—ideal for photographers, advanced recreational divers, and anyone who values efficient, controlled diving.

Why Choose a Back-Inflate BCD?

• Efficient horizontal trim: Wing-style buoyancy promotes a flat, streamlined profile.
• Uncluttered front: Less bulk on the chest for easier hose management and camera work.
• Precision control: Responsive inflator and dump valves for fine buoyancy adjustments.
• Better mobility: Greater shoulder and arm range for task loading and long swims.
• Travel-ready options: Lightweight models pack small without sacrificing performance.

Key Features to Compare

• Lift capacity: Commonly 20–40 lb (9–18 kg); choose higher lift for drysuits and steel tanks.
• Wing shape and stability: Bladder bungees or internal baffling to prevent taco effect.
• Weight system: Integrated quick-release pockets plus rear trim pockets for balance.
• Harness and fit: Adjustable shoulder straps, sternum strap, and optional cummerbund.
• Materials: Durable 840–1000D nylon shells, reinforced seams, corrosion-resistant hardware.
• Valve layout: Shoulder and rear dump valves; oral inflator ergonomics and hose length.
• Travel weight: Total BCD weight and packability for airline limits.

Who They’re Best For

Intermediate to advanced divers: seeking better trim and efficiency.
Photographers and videographers: needing an open, uncluttered chest area.
Cold-water or drysuit divers: selecting higher-lift models for heavy exposure protection.

Buying Tips

1. Match lift to environment: Warm water with AL80 often needs 20–30 lb; drysuits may need 30–40 lb.
2. Check surface behavior: Practice inflating at the surface and lean back slightly to stay upright.
3. Dial in trim: Use rear trim pockets and small belt weights to balance heavy fins or steel tanks.
4. Try with your suit: Fit the harness wearing your typical wetsuit or drysuit and gloves.
5. Plan accessories: Count D-rings, pocket options, and mounting points for SMBs, reels, and lights.

Maintenance & Care

• Rinse exterior and flush the internal bladder after each dive.
• Cycle the inflator and dump valves to prevent salt buildup.
• Store partially inflated in a cool, dry place; avoid prolonged UV exposure.
• Have inflator and OPV/dump assemblies inspected annually by a technician.

At-a-Glance Comparison

Frequently Asked Questions

Are back-inflate BCDs hard to use at the surface?

They can tip you slightly forward when fully inflated. Lean back, keep your fins forward, and use small controlled breaths of inflation to stay comfortable.

How much lift do I need for a back-inflate BCD?

Warm-water divers with an AL80 usually prefer 20–30 lb of lift. Cold-water or drysuit divers often choose 30–40 lb to offset buoyant suits and heavier tanks.

Do back-inflate BCDs have enough storage?

Many include streamlined cargo pockets, knife mounts, and multiple D-rings. Consider add-on pouches if you carry lots of accessories.

What’s the difference between back-inflate and jacket BCDs?

Back-inflate BCDs place buoyancy behind you for better trim and less chest clutter. Jacket BCDs offer more wrap-around buoyancy and surface stability.

How should I weight myself with a back-inflate BCD?

Use integrated quick-release pockets for primary weight and rear trim pockets to balance your position. Always practice quick release and re-seating.