I almost didn’t order this item because of the feedback reviews. However, I’m very glad I did. I’m 5’10 280lbs. I wear a size 46 jacket and size 42 waist pants. I ordered the XXL Leatt 5.5.It arrived in 5 days. It is much higher quality than I expected. It fit me easily. I can put it on by pulling it over my head. This is the easiest way I found to put it on. However, I use the zippers to get it off.I ride hare scrambles and find this to be exceptional protection. I did put hot glue on the arm zippers to prevent them from coming open. Hot glue can be peeled off without damaging the zippers.I have wore it 6 times so far with the hottest day being 72*. It hasn’t been to hot as of yet.I wear a cotton T-shirt under, then the Leatt 5.5, then my jersey. I did not purchase the neck brace.So far I haven’t went down, so I can’t really swear to how well it will work. But it feels considerably better than my old Titan.That being said, it is heavier than any previous chest protection I have used. The weight is not an issue, and I am 50 years old. So younger riders should have no concerns.I’m very happy with this and would recommend it to my friends. This is a lot of info, but this is a costly item.I hope this helps. Good luck and be safe.