This term is used to describe how your YAQI Razor will shave.
It is a reference to a combination of:
Blade Gap - measured between the Cutting edge of the blade and the razor guard.
Blade Exposure - measured by how far the blade extends past the protective plates.
Blade Gap + Blade Exposure = Shave Profile ~ displayed as a value out of 10
with 1/10 being the Minimum Gap & Blade Exposure
and 10/10 being the Maximum Gap & Blade Exposure.
Because, thankfully, we are all different.
The higher Shave Profile heads
are rarely sold as a complete razors. But thankfully you can purchase these heads and fit them onto your existing handles.
There are many growing Wet Shaving Communities online that openly discuss these techniques and share their experiences.