Jet Pilot - This Uniquely Patented design incorporates padded leg straps for zero "Forward Excursion of the pelvis underneath the lab belt"(also called Submarining). This System is similar in function to a repelling harness. The adjustable anti-submarining straps wrap around the upper thighs of each leg and attach to the latch/link buckle(or rotary buckle) lap belt. This harness also comes with chest and pelvic pads, a sternum strap, and lumbar support to complete the Jet Pilot system. These harnesses have the most anti-Submarine control available in addition to further limiting any awkward sideways leg movement and pivoting of the pelvis in the seat. This support is essential during off-road and road race and marine racing courses where compound off center horizontal - vertical movements and high deceleration rates are extreme. If you need to stay put in your seat, and not slide under the lap belt, the Jet Pilot Harness is designed especially for you. The Jet Pilot harness is only available with pull-up lap belt adjustments.