I got two pairs of these new on ebay for an excellent price so look around before you settle on paying full retail for these.  I did a little research and read many reviews.  About half of the 100 or so reviews I read, said the Frye Calvary runs a half size too big.  The other half of the reviews stated they ran true to size.  Well... I ended up getting one pair true to size, and the other pair a half size smaller than usual.  I normally wear a 7.5, so I ended up with a pair in size 7.5 and a pair in 7.  The 7's fit very tight on my wide feet, but as many reviewers stated, once they break in they will fit perfectly.  I was very skeptical because they felt so snug, but 3 days later of breaking them in slowly while walking around my house, I am starting to agree.  I do not doubt that in a month or so they will be completely molded to my feet.  The 7.5 (my true size), feel perfect right out of the box, not too big or small.  I decided I am going to keep both.  If the 7.5 starts to stretch out that's fine cause I like to wear thick socks during the colder months anyways.  So the 7's will be my summer boot for thinner socks, and the 7.5 my winter boots for thicker socks.  I got the Sand and Cognac and love both colors.  The height is good.  The shaft could be a little bit shorter in my opinion but oh well... I am petite so the taller the boot, the shorter my legs look.  Overall, I am super happy with my new boots and finally I can stop searching for the perfect boot cause I have them in my closet!