Hollis Aluminum Back Plate, Black Instruments 2 needle “felled seam” construction

2 needle “felled seam” construction increases seam integrity

redesigned overpressure relief valve (OPV) and corrosion resistant stainless-steel grommets to replace the mesh on the bottom of the wing

Advanced Diver

Stainless Steel Cam Buckle

Paired with the FDX-i first stage

Hollis Aluminum Back Plate, Black Instruments 2 needle “felled seam” constructionThis products Overview The Hollis Back Plate is engineered to fit closer to the cylinders preventing GAPEOSIS, creating a tighter profile and as a result reduces drag. The edges on the outside of the Hollis 5052 grade hard black anodized aluminum back plate are radius formed to fit the Hollis BC, thereby preventing back plate chafing of the BC. The webbing that passes through the slots in the back plate must continue to function throughout the dive