I love these boots, they are so cute and comfy.  They are a bit tight right at the top but I'm sure they will stretch just fine with wearing.  I did receive these without the vents at the top cut so I could not zip them up at all.  Once I cut the vents I was able to zip them.  (They are the little triangles with elastic stitched on the inside.)  They are more of a dark charcoal than a true black.  I found them to be true to size- ordered an 8 and I normally wear an 8.  They are a bit on the wider side though, which makes them perfect for thick socks.