Charles owen, one k, some samsheilds
I have a Charles Owen JR8 and it's amazing and under $300!
One K (I've had a One K and now I have a Samshield) but the One K is really nice!
Samshield and Charles Owen. But whatever helmet you buy remember that it should be GPA certified.
Many places have sales on helmets. I purchased all of my helmets (GPA, Samshield and Charles Owen) for under $275 each!
I know there aren't some Charles Owen that are under $300 (unless I'm just dreaming)
But I ride in a One K and it's just fine