Dr. MartensWomen's 1460 W 8 Eye Boot

Is the "black smooth" color all black, as depicted in the photo? (I.e., black sole and no yellow stitching.)

Are these womens 1460? The size indicate that these are the womens verison?

what is the size for european 37.5 or 38 women ?

I don't get, what's the difference between black one and black smooth one? the photos are absolutely the same