Hollis DT 45 Dual Wing, BCD WingHollis DT 45 Dual Wing The Hollis DT 45 Dual Wing is engineered for technical divers who require redundant buoyancy and stable trim when diving aluminum double cylinders in warm water environments. Featuring a true dual bladder design and a full 360 degree wing profile, the DT 45 delivers reliable lift, balanced flotation, and enhanced safety when backup inflation is mandatory. Designed for disciplined technical configurations, the DT 45 provides