Hollis DT45 Wing Bladder

Important: this is the Hollis DT45 wing/bladder only — the buoyancy component of a modular backplate-and-wing BCD system. It does not include a backplate or harness. If you're building or upgrading a rig, you'll need to pair this with a compatible Hollis backplate and harness (sold separately).

Verified Features

• 45 lb (20 kg) lift capacity
• Dual bladder design with a redundant air cell — two independent buoyancy chambers instead of one
• Built for double-cylinder, warm-water diving with banded aluminum tanks, where backup inflation is required
• Rugged 1680 Cordura nylon outer shell resists abrasion and punctures
• 420-denier nylon inner bladder, internally urethane-laminated with RF-welded seams
• Lower OPV, positioned for easy reach while horizontal or heads-down
• Hollis K-style power inflator with a crushproof rubber hose, plus oral inflation capability
• Tank slots built in, allowing an occasional single-tank dive without a separate adapter plate
• 5-year (60-month) warranty

Why It Matters Underwater

The redundant air cell is the whole point of a dual-bladder wing: if one bladder fails, the second one is still there to keep you buoyant. That's the kind of backup technical and double-cylinder divers plan around rather than hope they never need.

Why FGSS Likes the DT45

Redundancy you can trust matters more than almost anything else in technical diving. The DT45 gives double-cylinder, warm-water divers a genuine backup buoyancy source without switching to a drysuit-focused wing they don't need.

Fat Guy Scuba Supply – Scuba Gear That Fits the Diver.