While it is not easy, I can belt myself in my Reynard FC: Get in the car with my defNder HNR and Bell Dominator on along with the GForce arm restraints. Using the GForce belts with lap adjusters I snap in the anti-submarine belt, then the left lap belt (right is attached to the cam lock), then each shoulder harness with the other end of the arm restraints which has a metal ring that the shoulder harness goes thru at the latch. Tighten each lap adjuster, then the shoulder harness. Hardest thing to do is the shoulder harness - all by feel, can't see a thing!