Seat Indication Point
Encyclopedia
Seat Indication Point is the base measurement for all seat related specifications - such as zone of reach, zone of comfort, ROPS
RoPS
Rovaniemen Palloseura is a Finnish football club, founded in 1950 and based in the town of Rovaniemi. In 2009 RoPS played in the Finnish Premier Division but got relegated to Ykkönen after being the lowest-placed team in the end of the season...

, FOPS, and visibility. It is floating in air above seat cushion, somewhere near driver's hip point, or H-point
H-point
In vehicle design and especially automotive design, the H-point is the theoretical, relative location of an occupant's hip, specifically the pivot point between the torso and upper leg portions of the body, either relative to the floor of the vehicle or relative to the height above pavement level...

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