I Purchased a Shark, Spartan Carbon Fibre in Red, Black. My basic findings are. Why didn't I buy this years ago!! The Helmet is Light in it's Category, Well Ventilated with Top and Jaw facing vents easily operated whilst riding if required. I fiited the "Pinlock" Visor attachment it was very easy, check out the Youtube Vid? If i can do it, most can. The Helmet is easy to remove Visor and Shark supply a Tinted spare if you prefer. The Helmet has a good "Sharp" Modern feel to it, very Modern looking. On the ride, I found the Visibilty Excellent all around. I found the Helmet much quieter than the Shoei i changed from. Much cheaper but more Modern, Lighter, Cooler and the Sliding Sun Visor is Brilliant as you can set your own level "Horizon" with it. It works quite Brilliantly i have to say. I adjust it on the left hand it takes seconds when the time is right when riding. It makes Riding much safer for my needs I have to say. Kinda the Best of All Worlds. The lining is good quality but i dont think it is as easy to remove and refit. I found the initial fit quite tight around the jaw, but it has adjusted to my face and is great now. I feel "Snug" and very safe.It has the double "D" Strap Fixing, standard stuff but very safe. My Bike now makes a gentle "Purr" it is definately quieter than my Shoei. The Shark also has a Face Apron for Winter, Colder weather you can pull it out, it folds into the Lower face plate. I have had no need yet. I hear my Music and Phone Better, my Bike sounds quieter. I just use in-ear bluetooth i cant be bothered with all the other so-expensive stuff and that all fits well as well. Very pleased with my Shark! It Bites the right Areas to make riding your Bike more enjoyable from All Aspects in my experience. Again, just my experience/opinion no debates please. No disrespect intended to other makes etc...The Shark is outstanding Value at £300, it has great features for that bracket, very well constructed and a very safe standard. I hope this helps someone.