I was chosen as a Klein Crusader by Klein Tools. They provided me with this free tool and other incentives to provide an honest review of this product. I am mainly a residential electrician however we do commercial jobs here and there, and my least favorite part is always wearing the hardhat all day, but this hardhat is going to change that! It is easily the most comfortable hardhat I have ever worn! It is so comfy that you almost forget your wearing it like baseball cap. I got the hardhat with the vents on the side and let me tell you it is worth the few extra bucks to get the vents. When you’re working and sweating and especially bending conduit in the rafters of a commercial building a little extra airflow makes a huge difference. The adjustment knob is very easy to use unlike other hard hats and can even be adjusted with large PPE gloves on. Also another nice thing is the sweat wicking pads on the front and side of hat, which help keep you cool and keep sweet out of your eyes! The last great thing about this Klein product is that they have made it headlamp ready. It comes with a head lamp clip on the front and back of the hard hat so all you have to do it clip your Klein headlamp in and you're good to go, no more goofy headlamp bands stretched out across your hard hat. Over all it’s one of the best hard hats on the market in my opinion and I’d highly recommend it to anyone in search of a hart hat, but Klein or don’t buy at all!