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The Black Diamond BC is the do all, be all BC for the serious recreational diver. 
From Tec to Rec the Black Diamond will meet all of your demands and do it well. 
Designed to provide the comfort desired for daily diving and the features needed to take you over the edge, the Black Diamond is ideal for the diver who does it all.

Exclusive Sure Lock™ (patent pending) mechanical weight release system.
Rear-mounted non-releasable weight pouches hold a maximum of 10 lbs/4.5 kg of weight
Patented low-profile three dimensional air cell
Fully reinforced internal LDH plastic harness provides excellent support and load distribution.
Easy to use 2 inch (50mm) wide swivel buckles on shoulder improve fit and load support.
Self-adjusting Lumbar Support (SLS)
One large cargo pocket and two zippered security pockets
NEW! right shoulder pull dump
Vertically adjustable chest strap
Multi-set waist adjustment that also accommodates optional 12" (30cm) waistband extensions
Rolled neoprene around the collar for added comfort
5 Large Stainless Steel D-Rings (4 on size small)
Over-molded carrying handle
Back pad lifts to expose double cylinder access holes
Contoured Backpack provides the needed stability even with the heaviest cylinders.
Patented Tank Traction System (TTS) ensures the tank is firmly attached to the BC
Two lower pull dumps allow for easy dumping of air if you prefer head first descents or when you are in the swimming position
Accessory attachment grommets allow for quick attachment of a Deep See knife directly to the BC
Webbing loops for optional crotch strap
Stainless Steel Jon line D-ring