Just thought I'd clarify on the RC boots:
1. They are all made in Peru
2. The Mars has a lower shaft compared to the Pen Pals which curve slightly higher in the back. RC boots are pretty true to size and run slightly narrow. 1/2 sizes might find that their heels will slip in full sized shoes, so take your exact shoe size.
3. The shaft for the Mars is straight and very flattering on the ankles.
4. The heels for both Mars and Pen Pals are 2.75 inch, and because they are slightly higher than IM boots, they are a little less comfortable in my opinion. Also, the heel on the RC shoes are made from a rubber plate that gets really slippery.
I personally prefer the Mars which I sold last year because the 6 were ever slightly too big for my 5.5 size feet. I have the Hitch booties from last year in my exact size and they fit really well. Hope that helps!