What are the equivalent US trim levels for Aus Prius?

In Australia there are 2 trim levels, the base level standard one and the fully featured i-Tech Auto.

I haven't yet purchased a Prius but expect it will either be a 2015 (gen 3) or 2016 or 2017 (gen 4). The trim level will depend on what's available at the time.

I'll be looking to buy some accessories from the US such as the Covercraft sunshade. When ordering they need to know the US trim level as apparently the dimensions vary between levels.

Is there some way I can be sure to order the right one for the Australian trim level I end up with?