lol you are right about the space helmet look..
Well the helmet came.. about 2 1/2 after the delivery window but the guy was telling me he was the only person in this area.
The small fits just perfect the strap is a little tight under the chin, it feels light but man I don't have OTG goggles but damn they are pressing the nose frame hard on my nose, other then that the fit is good!
I have the non audio inserts but I can fit earphones under the flap without pressure, they just have to be the type that curves down
*edit my rimless glasses work perfect! no pressure since they are able to bend slightly around the nose bridge, I'm going to order a few more plus they seal a little bit better around the frame stems.