Even if you’re a track rider who does not wear a Leatt neck brace, this is a great body protector. I ride mostly off-road, so I deal with a lot of roots, rocks, and trees. I typically like to wear a chest protector that has rib, shoulder, and bicep protection due to the environments I like to ride in. The AirFit vest does not provide protection to those areas, so I was a bit more cautious on the trail when riding around branches at speed. The vest has padding on the chest, the back, and the hips, all of which do a great job with impact protection in low-speed crashes (I didn’t test the high-speed crash factor, but I trust the CE rating). Since this is a Leatt product, I assumed it would work well with my Leatt neck brace, but I didn’t find that to be true. With the vest on, I found that my Leatt neck brace didn’t sit properly on my shoulders—it pushed the back of the brace up into an awkward feeling position. While riding with both the vest and the brace, the brace wanted to bounce around on my shoulders and up to the bottom of my helmet. When I would brake down a hill or go into a turn, my brace would bounce to the bottom of my helmet and the back would get caught on the upper portion of the back padding in the vest; my brace would then hold my head forward in a not-so-convenient position. I tried to solve this problem by having another rider take a look at it while I was fully geared up, and we couldn’t find a quick and easy solution. The best way to stop your brace from bouncing around would be to buy a neck brace securing strap.