These boots are fantastic! They come just to the knee, the heel is just the right height, and has great support.  Not slippery at all all.  Can be worn with skinny jeans or skirts!  I will say that maybe you should be careful if you have athletic calves because they do not have very much give. They fit very snug and do not droop down at all.  I wore them for about 5 hours with no discomfort at all.  Glad I got them!