This is the Hollis Elite II SLX Wing SS Backplate Scuba Package FeaturesL Hollis Stainless Steel Backplate: Engineered to Fit-Closer to Cylinders Preventing GAPEOSIS Tighter-Profile, Reduces Drag Electro-Polished 316-Grade Stainless Steel Design Outside Edges: Radius-Formed to Fit Hollis BC, Prevents Back-Plate-Chafing of BC Slots, Holes and Edges of Hollis Back Plate are Fully-De-Burred, Reduced Harness Wear 1 & 2" (2.5cm & 5cm) Slots for Crotch Strap Designed for Single or Double Cylinders with Proper Adapters Weight: 5.5 lbs. (2.5 kg) Hollis Elite 2 Adjustable Harness System: Great for Tech or Recreational Diving Adjustable Shoulder and Sternum Straps: Equipped with Squeeze-Style" Side-Release Buckles Stainless Steel Latch-Style" Waist Buckle Easy Donning and Doffing Adjustable and Removable Shoulder Pads 3-Adjustable Stainless Steel Pre-Bent D-Rings on Each Shoulder 2-Stainless Steel D-Ring on Waist Strap Plenty of Room for Accessory Attachment All Hardware Manufactured from 316-Marine-Grade Stainless Steel Weight: 1.7 lbs. (770 g) Hollis Stainless Cam Band: Soft Tank Band and Cam Buckle Durable 2" (5cm) Nylon Webbing Strap Buckle Box Stitched on Webbing for Strength and Durability Non-Slip Rubber Pad Stainless Steel Cam Buckle Hollis Back-Plate, Back Pad with Book Screws: Increased Dive Comfort Easy-to-Install Complete with Mounting Book Screws Durable Long Lasting Construction Nylon with Foam Padding Sewn and Taped Edges for Added Strength Hollis Gear LX Wing: Developed and Tested by Technical Divers and 3-Years in the Making Integral-Features: Quality and Performance, Key-Improvements 1680D CORDURA Exterior Bladder 420-Nylon Internal Bladder 360° Degree Internal Retraction System for a Streamlined Rig at All-Times New Oval Corrugated Hose Power Inflator Mechanism Redesigned Overpressure Relief Valve (OPV) Corrosion Resistant Stainless Steel Drain Grommets Welded Flange and One-Piece Retainer: Servicing w/o Need-for-Tools Centrally-Located Inflator Mechanism Elbow: Avoids Tank Valve/Regulator Interference Lower Left Pull Dump/Overpressure Relief Valve Tech and Rec diving is at its best with the Elite 2 Harness System, providing divers all the features of a technical harness with the added comfort that recreational divers look for. Adjustable shoulder straps with quick release buckles provide easier donning and doffing of equipment. Elite 2 features removable shoulder pads with 3 adjustable stainless-steel bent D-rings on each side; 316 "marine grade" stainless-steel on hardware waist buckle, and an adjustable sternum strap is included for a custom fit."