This helmet has saved me some serious dane bramage in the past. The sizing is accurate and the boa system works great. It works well with my Anon haykeyes. The best part of this helmet is that you can use it from the coldest blizzard to the warmest spring day. When its warm, you can take the ear pads off and open the vents up. When its cold, you just shut the vents and no more icy gusts getting to your head. I use a little trick to keep the wind from getting through the spot between your helmet and goggles. You can take the liner out and can adjust it forward about a half inch. It sticks out a little but when you put your goggles on, they go on top of the liner covering your forehead.
Its a great helmet that protects your head (trust me). Its light and stays in place. Its very customizable and you can wear all kinds of beanies underneath or just wear it as it comes. The price is a little up there but you wont find anything that this helmet is missing. You wont regret getting this one