Tusa Platina Evolution BCD, Black (BCJ-3860) - Large/X-large Ultimate Stabilizing Harness and Tank Suspension System provides ultimate tank stability and unsurpassed buoyancy control. Unique quick release accessory holder Heavy-duty 840-denier Nylon with polyurethane backing for superior strength and durability. Independent Harness System provides ultimate tank stability and unsurpassed buoyancy control. Shoulder dump valve and lower back valve