smithUnisex Vantage Snow Sport Helmet - Matte Slate | Large

Can you remove the ear protection/insulation?

i want to buy asia fit model. i read description in there *available asia fit. what should i do?

Is this helmet geared towards a more narrow head or round? I have a smaller head that is about 56-57 cm and more narrow than round. any suggestions?

Are the vents adjustable, as in can you open and close them with a switch on the helmet?