Gene will know if you refer to it as the "Pocket Fixed".
The sheath encloses nearly all the knife. I do not have any images of it housed but only about 15mm of the handle is out of the sheath when seated. The attached lanyard, or something like it would be required to easily remove the knife from the sheath.
My knife is securly held by the leather, but I am not sure that upside down carry would work in the long run. There are no mechanical blocks etc to hold the knife in the sheath only a good tight fit and the resultant molding of the leather around the finger cutouts. Gene offer to work with me on the leatherwork if I saw any changes needed. I saw nothing, but definately ask him about upside down carry.
As EDC this little blade is handy, sharp, and useful for many daily tasks.