Dr. MartensWomen's 14-Eye Vonda Casual Boot, Black

Do they have the bouncy soles since they are AirWair Dr Martens?

For sizing, what does "5 b (m) us" mean?

I normally wear. 7.5 wide or 8M. Will the 8 be ok? Is there any arch support?

What is the difference between the black and the black softy t??