RJS Racing Equipment 11000301 Arm Restraint - Black Nylon Safety Restraints for Drag Racing, Auto Racing, and Motorsports - Secure Driver Arm Support for High-Speed Performance

I'm not sure how you mess up an arm restraint, but somehow RJS figured it out. I've had a bunch of issues with RJS harnesses in the past but figured it'd be fine this time since you couldn't possibly mess up an arm restraint. I have an endurance racing team with an open cockpit so we usually have one on the current driver and another set primed on the driver in queue. We purchased this as a third for backup, with the previous ones being ultrashield.The RJS one has horrible adjustment because the buckles are extremely sharp and you can't just pull the tail to tighten. Once you slip the restraints on your arm, you can't tighten them yourself because it takes two hands to adjust them. Next, the area around your arm has this weird double layer thing that slips out, unless you have huge arms. Finally, there's unnecessary buckles in the middle of this that are just this annoying jingly weight hanging off your arm.Normal arm restraints are annoying enough to wear, but this one takes the cake. These are unusable.