<p>Some helmet manufacturers make helmets that are easily adjustable for bigger and smaller heads. Mine is adjustable even while I’m wearing it. I recommend them.</p>
<p>But Fang, you say, your head doesn’t change sizes! Ah, but this makes it so easy to adjust my helmet when I wear a thin wool beanie, or even when I put up the hood on my wool hoodies. I can make my helmet safely snug, wearing or not wearing a hat.</p>