The size and shape make it really inique. Its a thermal mask that is reasonably cheap. I payed about 28$ for my online. The vision out of it is pretty good. Its the only mask i have ever had so i don't know if some others are out there are any better.
The material near my neck sometimes irritates my neck. It is kind of rough so it bugs me. But unless your a awussy it shouldn't be a big problem.
This is a good mask if your looking for a thermal mask with good vision. I would advise it to everyone. For 28$ you can't go wrong.
The coverage over your face and neck is awesome. In other masks I was always worried about getting hit in the neck. Not with this mask. The field of vision in this mask is huge and it's really comfortable.
I ordered the thermal lens system expecting a dual pane lens but with the Bad Ass it's a single pane lens.
I would suggest this mask to anyone considering a new mask. The breathing area inside the mask is huge. It's comfortable and it's soft but not too soft.