After ordering the Engineer 12R boot, I didn't think a Frye boot could get better insofar as comfort, fit and style went, but the Harness has exceeded all my expectations. I was worried about this style as reviews indicated that the toe area was narrower, and that it my be harder to get into. Not so, for some extraordinary reason this style is even more comfortable. As I am now addicted to Frye boots, the obsession about whether the 15R will be too tight for my calves has begun. However as one reviewer pointed out that the calf measurement given is for a size 6 and increases proportionately with shoe size, Im hoping thats true for a size 11. Also could not be happier with Amazon's service to Australia.