I've been using my Hedkayse for a couple of months, and I'm absolutely certain it's the best and safest helmet I've ever tried. The adjustment straps are great, and the quick release tag is genius. It folds really well, although the included bag is way over the top for me. If I need to hold it in the folded position, I just use the chin straps over the top. My only downside was attaching my Zefal helmet mirror, because it's softer than a traditional helmet. I eventually found a way to cable tie it between the segments, but it was very fiddly. It would be great if that could be designed in. Mine is high-vis yellow and matches my jacket perfectly. That alone makes it safer, but as a cycle campaigner, I've looked hard at helmet safety, and this is far and away the safest helmet yet. I knocked myself out recently on a fall that smashed a polystyrene helmet, because there is no give at all - your brain has to decelerate over a millimetre or two. Encase foam has much more give, and increases the deceleration distance to a centimetre or two - that's up to 10 times less g force. And of course, a polystyrene helmet is finished after one use. I'm convinced!