The ST System combines most popular single tank components into one, both including the Solo harness for the ultimate in simplicity and streamlining. This kit is preassembled from the factory and includes unique components depending on the configuration. For those diving in colder waters can choose the ST System, which includes the ST35 wing, Stainless Steel Backplate 2.0 and Backplate backpad 2.0.<br><br><br><b>- ST35 Wing -</b><br>The new ST line of wings are a brand new series for single tank diving. The design features a 360 degree tapered profile, to increase lift towards the hips, promoting better horizontal trim in dive position while still allowing perfect surface floatation.<br><br>Alternatively the ST35 is an excellent choice for a go anywhere wing with the added lift for those local cold-water dives and heavier steel cylinders but still streamlined enough for travel destinations. Tank slots and tank cradle are included on both models, which allows you to connect your wing and backplate without the need for a single tank adapter plate. This reduces weight and unnecessary accessories while traveling.<br><br>The bladder is a two-piece design, with a rugged 1680 Cordura nylon outer shell to prevent abrasion and punctures, and a 420-denier nylon inner bladder to maintain the buoyancy. The lower OPV is easy to reach for venting gas while horizontal or heads down, and the inflator design is a K style with a rugged crushproof rubber hose for easy positioning and oral inflation should you need to.<br><br><b>Features</b><br>&#149; Welded flange and one piece retainer for servicing without the need for tools<br>&#149; HD Laminated 1680D Cordura outer shell<br>&#149; 420 nylon internal bladder<br>&#149; Elbow offset to avoid tank valve/regulator interference and streamlined hose routing<br>&#149; Lower left pull relief valve<br>&#149; Cam band slots & tank cradle built in<br><br><br><b>- Solo Harness -</b><br>Designed to meet all the needs of demanding technical divers, the Solo Harness System is clean, simple, and foolproof!<br><br><b>Features</b><br>&#149; Streamlined design enhances comfort with less drag<br>&#149; Continuous one piece harness system limits failure potential<br>&#149; Stainless steel D-rings and cam buckle included<br>&#149; Removable shoulder pads accept stainless steel D-rings<br>&#149; System weight (harness only): 1 lb (0.45kg)<br>&#149; Solo Harness: One Size, Trim-to-fit<br><br><br><b>- Stainless Backplate 2.0 -</b><br>The Hollis 2.0 backplate line is the foundation for the new Hollis technical harness systems. Both feature improved ergonomics for a more comfortable fit, butare still short enough to fit smaller framedivers..<br><br><b>Features</b><br>&#149; AISI 304 Stainless<br>&#149; 4mm thickness<br>&#149; Sandblasted finish / Electropolished & chemically passivated<br>&#149; Laser cut & CNC bent<br><br><br><b>- Backplate Backpad 2.0 -</b><br>The Backplate Backpad 2.0 is a comforable two piece design with added lumbar support, which easily pivots out of the way of your doubles tank bolts and cam bands when assembly or disassembly as needed.<br><br><b>Features</b><br>&#149; Two Piece Design<br>&#149; Comfort added lumbar support<br>&#149; Easily pivots out of the way of tank bolts<br>&#149; Included with the new Hollis Tech Systems<br>&#149; Not compatible with previous generations Hollis Backplates