There has been a lot of chat on the blog and forum at various times about finding tall boots for different size calf diameters and heights. Although I have amassed a fabulous boot collection since finding YLF, I currently can't wear any of them due to a new foot problem (=-( ). But I did notice that my Ariat Heritage Lacer II paddock boots were one of the two pairs of boots I could still wear happily pain free. Since tall boots are such an integral part of my style I started researching Ariat's offers and found they sell basically semi custom riding boots. Okay, these boots are real equestrian boots so they are made for comfort, fit and they have a fabulous foot bed, for those of us with fussy feet, with excellent arch and metatarsal support. I chose to try Ariat's Challenge contour square toe field boot (although I have the same boot in a round toe coming for comparison). Sizing is by foot size. Ariat boots are TTS. I run 7-75. and wear a size 7. The width comes medium only but a generous but not overly wide with plenty of toe wiggle room. The calf is contoured with a narrow ankle, elastic gusset at top and back for fit. Calf height sizes come regular, short and tall. With slim, extra slim in some sizes, regular and wide. Detailed fit chart and videos on how to measure. I am 5'3" with a long ankle to calf measure compared to most but with a 12 1/2 in calf and 16 1/2" floor to back of knee, I got the 7 regular short (do not buy width too small the regular width reads 13 3/8 and is perfect). They recommend buying 1" higher on calf height because like all riding boots they are built to drop about 1" but the ankle is narrow so we are not talking scrunch. The boots are beautiful, leather substantial but supple, leather lined, heavy duty zipper with a full elastic gusset for ease and a top gusset for give. There is a zipper tab closure at the top. The ATS insole is divine and the duratread sole is soft and sure. For anyone looking for a riding boot style (and there are several cool versions, even the monaco a sneaker boot style) with the ability to specify calf height and size I think these are a fabulous choice. There is also the Heritage model which is $100 less which also has very good reviews. http://www.ariat.com/women-english-footwear http://www.ariat.com/CHLLNGE_CONTOUR_W_FOO.html Also a shout out to Dover saddlery http://www.doversaddlery.com/a.....teslarefwn I bought my boots from them and needed to exchange and they've been awesome. Faster shipping than ariat, more generous return period and no repeat shipping on the exchange. Hope that helps anyone with fussy feet and hard to fit calves!!