Erin B.wrote a review of Salomon Uma Trois Winter Boot - Women's on December 31, 2012
Familiarity: I've used it once or twice and have initial impressions
I bought these boots. They are truly skin tight. I had read many reviews on these and many women said that if your calves are large they won't zip up. I have moderate calves. I put the boot on, and it is absolutely the lightest, nicest boot ever. I went to zip it up, and my moderate calves are too big. So I'll say that I measured the circumference of the top opening, and it is 16.5 inches around. Beware though, this is the OUTSIDE of the boot, not the inside (not that I would expect such a thin boot to be much different, but if I had to guess, I would say that a 16" calf would be the biggest it will accommodate). But if your calves measure that or less I couldn't recommend these boots more highly. They are AWESOME...I just wish they fit me!