Scubapro

Scubapro S-Tek Pure System, Stainless Steel Backplate, Donut Wing 40 lb/18kg

A DIR-style backplate-and-wing harness system with a continuous webbing harness, positioned below Scubapro's S-Tek Pro line.

Wing / backplate

Modular harness and wing, the standard technical-diving setup. Expect to configure backplate, wing, and harness separately rather than buying a fixed jacket.

Scubapro S-Tek Pure System, Stainless Steel Backplate, Donut Wing 40 lb/18kg
2.8Comparison Score
$845
Buy on AmazonBuy on Scuba.com
Released2021
Stylewing backplate
Weight-integratedNo
Lift capacity40 lbs
Backplatestainless-steel
D-rings5
Trim pocketsNo
Material1000D Cordura outer shell, 500D Cordura inner bladder
Travel-friendlyNo
Dry weight4360g
Fitunisex
Sizes—

"Lift capacity" is the manufacturer-rated buoyancy the wing/bladder can provide at the surface. Match it to your exposure suit, tank, and weighting, not the biggest number available.

Pros
  • Continuous webbing harness (rather than the S-Tek Pro's TEK LOC harness) follows the classic DIR/BPW approach with a simpler, more minimalist build
  • 3D-formed backplate with fully radiused edges and EVO Angle webbing slots for more natural webbing routing
  • Built-in carry handle and argon-bottle mounting point on the backplate
Cons
  • No integrated weight system, so divers need a separate weight belt or the backplate's trim-weight mounting points
  • Sits below Scubapro's S-Tek Pro line in finish, so divers wanting quick-release harness buckles will want the Pro version instead
Diver community sentiment
Mixed opinions

Scubaboard threads on the S-Tek Pure describe solid overall build and toughness, but the stock webbing draws recurring complaints for being too soft and prone to curling compared to Dive Rite, Halcyon, or DSS harnesses. Other posters flag compatibility headaches with the proprietary inflator and hose fittings, and some question whether the price is justified next to established DIR-style competitors given those tradeoffs.

Scubaboard: S-Tek line impressionsScubaboard: issues with the S-Tek/X-Tek PureScubaboard: Scubapro wing/harness quality discussion

Summarized from public forum discussion (Scubaboard, Reddit, and similar), not a survey we ran ourselves. See the linked threads for the original conversations.

The S-Tek Pure System pairs a 3D-formed stainless steel backplate with a 40 lb/18kg donut wing and a continuous webbing harness, following the DIR (Doing It Right) approach to streamlined backplate-and-wing (BPW) diving. It’s built from a 1000D Cordura outer shell over a 500D Cordura inner bladder, with five D-rings, an argon-bottle mounting point, and a built-in carry handle. It sits alongside Scubapro’s S-Tek Pro System as a simpler, continuous-harness alternative for technical divers running single-tank configurations.