Black Sit Harness has two different versions of this harness to choose from, there is the Jet 2 and the Jet 4, they are almost identical but with the Jet 4 there is the extra of the 2 side attachments and alloy front D connection and alloy flip-back side D's. The Jet still gives the wrap around fit when wearing crampons, etc, or to stop getting soiled as is usual with the step in type. If preferred you may keep the buckles fastened to give step in fitment if required.