Got a Giro Shiv 2 after checking out a bunch of other helmets that would look and fit well with a beanie. I rock a medium as an adult in matte black, pretty standard. It's the best fitting helmet. Bonus: doesn't make me look like a goof. I've taken a few falls this thing for sure saved me from a headache on and it just keeps on trucking. I don't use the pads and ear buds work perfectly. When I rock a GoPro, located almost directly in between the 2 front vents, it doesn't nod so far forward that it's a problem even on large jumps. Overall I love this thing and would recommend going to try one on before ordering.