There&#x27;s a standard process we have for measuring each item.  The goal is to flatten the shirt without pulling on the material.<p>Measuring clothing is really, really hard to do in a consistent way.  In my original plan for the project, I was going to hire 5 task rabbits to measure everything, then throw out the min and max and take the median of the remaining three numbers.  It didn&#x27;t work.  The average taskrabbit had a standard deviation of error of 0.3&quot; for each shirt.  That might have been OK if the errors were purely random, but there was a lot of systematic error as well.<p>Eventually I was able to find two people who could provide consistent measurements.  They were within 0.1&quot; of my measurement for each item.  When there was a difference of more than 0.1&quot; we would remeasure the shirt.  In general I feel good about the data we published.